In a recent school survey, students were asked to indicate their favorite extracurricular activity. The results are displayed in the bar graph below:
The activities listed are:
From the graph, it can be observed that:
Based on the provided information, what is the total number of students who participated in the survey if the number of students who chose Football is 30, and the total number of students who selected the other activities follows the order presented in the list as 25, 20, 15, and 10 respectively?