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Finding the Fourth Proportional to 129,098.76, 193,680.99 and 75,835.77

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Solution

The fourth proportional to 129,098.76, 193,680.99 and 75,835.77 is: 113,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,098.76 : 193,680.99 = 75,835.77 : x
  2. Step 2: Convert to fraction form
    129,098.76/193,680.99 = 75,835.77/x
  3. Step 3: Cross multiply
    129,098.76x = 193,680.99 × 75,835.77
  4. Step 4: Simplify right side
    129,098.76x = 14,687,947,011.01
  5. Step 5: Solve for x
    x = 14,687,947,011.01/129,098.76
  6. Step 6: Final answer
    x = 113,772.95

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