Final answer:
Guang Xu aimed to modernize government bureaucracy by adapting Western historical governance structures.
Step-by-step explanation:
One way Guang Xu aimed to modernize government bureaucracy by following Western models was by adapting Western historical governance structures. Guang Xu introduced various reforms to modernize China's government, including the establishment of new government departments and offices inspired by Western models. These reforms aimed to make government administration more efficient and in line with Western practices.