In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-23, -44], [-151, 44, -125, -31, -175, 98, 73], [-134, -48, -191, -70], [4, 88]]