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Finding the Fourth Proportional to 122,715.60, 184,181.40 and 72,733.20

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Solution

The fourth proportional to 122,715.60, 184,181.40 and 72,733.20 is: 109,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,715.60 : 184,181.40 = 72,733.20 : x
  2. Step 2: Convert to fraction form
    122,715.60/184,181.40 = 72,733.20/x
  3. Step 3: Cross multiply
    122,715.60x = 184,181.40 × 72,733.20
  4. Step 4: Simplify right side
    122,715.60x = 13,396,102,602.48
  5. Step 5: Solve for x
    x = 13,396,102,602.48/122,715.60
  6. Step 6: Final answer
    x = 109,163.81

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