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Finding the Fourth Proportional to 103,446.30, 155,169.45 and 98,634.90

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Solution

The fourth proportional to 103,446.30, 155,169.45 and 98,634.90 is: 147,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,446.30 : 155,169.45 = 98,634.90 : x
  2. Step 2: Convert to fraction form
    103,446.30/155,169.45 = 98,634.90/x
  3. Step 3: Cross multiply
    103,446.30x = 155,169.45 × 98,634.90
  4. Step 4: Simplify right side
    103,446.30x = 15,305,123,183.81
  5. Step 5: Solve for x
    x = 15,305,123,183.81/103,446.30
  6. Step 6: Final answer
    x = 147,952.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.