Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_24 (sex_ratio__child_ INTEGER, work_participation___percentage_ VARCHAR)

### Question ###
What is the child sex ration for the population with 37.7% work participation?

### Accurate SQL ###

SELECT MAX(sex_ratio__child_) FROM table_name_24 WHERE work_participation___percentage_ = "37.7%"