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Finding the Fourth Proportional to 78,759.87, 108,691.25 and 42,951.84

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Solution

The fourth proportional to 78,759.87, 108,691.25 and 42,951.84 is: 59,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,759.87 : 108,691.25 = 42,951.84 : x
  2. Step 2: Convert to fraction form
    78,759.87/108,691.25 = 42,951.84/x
  3. Step 3: Cross multiply
    78,759.87x = 108,691.25 × 42,951.84
  4. Step 4: Simplify right side
    78,759.87x = 4,668,488,964.64
  5. Step 5: Solve for x
    x = 4,668,488,964.64/78,759.87
  6. Step 6: Final answer
    x = 59,274.97

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