Men = \(w\).
Women = \(2w\).
Children = \(w - 45\).

Total people = men + women + children:
• Total = \(w + 2w + (w - 45)\)
• Total = \(w + 2w + w - 45\)
• Total = \(4w - 45\)

Final Answer: \(4w - 45\)