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Finding the Fourth Proportional to 78,735.96, 108,655.29 and 42,925.86

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Solution

The fourth proportional to 78,735.96, 108,655.29 and 42,925.86 is: 59,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735.96 : 108,655.29 = 42,925.86 : x
  2. Step 2: Convert to fraction form
    78,735.96/108,655.29 = 42,925.86/x
  3. Step 3: Cross multiply
    78,735.96x = 108,655.29 × 42,925.86
  4. Step 4: Simplify right side
    78,735.96x = 4,664,121,766.80
  5. Step 5: Solve for x
    x = 4,664,121,766.80/78,735.96
  6. Step 6: Final answer
    x = 59,237.50

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