Have you tried the search join field?
Table a stores the id of content in table b.....
... so use a join on these tables...
... it would look something like this in the field (unless it's changed)
id | table b | table a | article-related
Then create a field that pulls in table b.radio-select-field
and set live value to 1 as that is what you want to filter
Then have this field hidden
You might have to muck around with match settings