The solutions to the system of equations
\begin{array}{r}\log _{225} x+\log _{64} y=4 \\\log _{x} 225-\log _{y} 64=1\end{array}
are \left(x_{1}, y_{1}\right) and \left(x_{2}, y_{2}\right). Find \log _{30}\left(x_{1} y_{1} x_{2} y_{2}\right).
The solutions to the system of equations
are \left(x_{1}, y_{1}\right) and \left(x_{2}, y_{2}\right). Find \log _{30}\left(x_{1} y_{1} x_{2} y_{2}\right).