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Finding the Fourth Proportional to 129,246.40, 193,432.20 and 129,246.40

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Solution

The fourth proportional to 129,246.40, 193,432.20 and 129,246.40 is: 193,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,246.40 : 193,432.20 = 129,246.40 : x
  2. Step 2: Convert to fraction form
    129,246.40/193,432.20 = 129,246.40/x
  3. Step 3: Cross multiply
    129,246.40x = 193,432.20 × 129,246.40
  4. Step 4: Simplify right side
    129,246.40x = 25,000,415,494.08
  5. Step 5: Solve for x
    x = 25,000,415,494.08/129,246.40
  6. Step 6: Final answer
    x = 193,432.20

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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.