The Goodwich family is headed to a theme park for vacation in Florida. The theme parks cost $210 for each person for the week. Included in that price is $78 for food and drinks as well as the cost of related fees, one for rides, one for shows, one for pictures, and one for water sports. Each of the four fees are the same amount. Write an equation representing the full cost of getting into the park and related fees and determine the price of a park fee.