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Finding the Fourth Proportional to 108,724.70, 162,933.45 and 80,423.90

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Solution

The fourth proportional to 108,724.70, 162,933.45 and 80,423.90 is: 120,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,724.70 : 162,933.45 = 80,423.90 : x
  2. Step 2: Convert to fraction form
    108,724.70/162,933.45 = 80,423.90/x
  3. Step 3: Cross multiply
    108,724.70x = 162,933.45 × 80,423.90
  4. Step 4: Simplify right side
    108,724.70x = 13,103,743,489.46
  5. Step 5: Solve for x
    x = 13,103,743,489.46/108,724.70
  6. Step 6: Final answer
    x = 120,522.23

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