The price fluctuations of Bitcoin may be associated with various other cryptocurrencies. Here are some common related cryptocurrencies:

1. Ethereum: As a leading cryptocurrency in terms of market capitalization, it holds an important position in smart contracts and decentralized applications. The price changes and technological developments of Ethereum may impact Bitcoin.

2. Litecoin: It is similar to Bitcoin in some ways, but with faster transaction speeds and lower costs. The market performance of Litecoin may influence investors' perceptions of similar assets, including Bitcoin.

3. Ripple: Primarily used for cross-border payments and settlements between banks, its applications and collaboration progress in the financial sector may affect the confidence and capital flow of the entire cryptocurrency market.

4. Bitcoin Cash: A fork of Bitcoin, it has certain technical and ideological differences from Bitcoin. The price trends and market performance of Bitcoin Cash may have an indirect impact on Bitcoin.

It is important to note that the cryptocurrency market is highly complex and uncertain, and the interactions between different cryptocurrencies are not always direct and predictable.