CMAT 2023 Quant Based LR — Previous Year Question

A set of figures carrying certain characters is given below. Assuming that the characters in each set follow the same pattern, find the missing character.

Example (shown alongside the question, to establish the pattern): a diamond shape with four corner numbers (101 top-left, 43 top-right, 35 bottom-left, 15 bottom-right) and the value 38 written in the centre.

The actual question's diamond: the same shape, with corner numbers 48 (top-left), 34 (top-right), 56 (bottom-left), 184 (bottom-right), and the centre value to be found, shown as "?".