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Finding the Fourth Proportional to 78,372.54, 108,154.83 and 42,562.86

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Solution

The fourth proportional to 78,372.54, 108,154.83 and 42,562.86 is: 58,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,372.54 : 108,154.83 = 42,562.86 : x
  2. Step 2: Convert to fraction form
    78,372.54/108,154.83 = 42,562.86/x
  3. Step 3: Cross multiply
    78,372.54x = 108,154.83 × 42,562.86
  4. Step 4: Simplify right side
    78,372.54x = 4,603,378,887.61
  5. Step 5: Solve for x
    x = 4,603,378,887.61/78,372.54
  6. Step 6: Final answer
    x = 58,737.14

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