No, don't capitalize "related". Here's why:
Originally Posted by Jasmin165
Chicago Manual of Style, 7.124:
How to capitalize hyphenated compounds in titles is often a question. A rule of thumb that usually proves satisfactory is (1) always capitalize the first element and (2) capitalize the second element if it is a noun or proper adjective or if it has equal force with the first element.
City-StateDo not capitalize the second element if (a) it is a participle modifying the first element or (b) both elements constitute a single word.