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Finding the Fourth Proportional to 134,909.20, 202,363.80 and 41,402.80

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Solution

The fourth proportional to 134,909.20, 202,363.80 and 41,402.80 is: 62,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,909.20 : 202,363.80 = 41,402.80 : x
  2. Step 2: Convert to fraction form
    134,909.20/202,363.80 = 41,402.80/x
  3. Step 3: Cross multiply
    134,909.20x = 202,363.80 × 41,402.80
  4. Step 4: Simplify right side
    134,909.20x = 8,378,427,938.64
  5. Step 5: Solve for x
    x = 8,378,427,938.64/134,909.20
  6. Step 6: Final answer
    x = 62,104.20

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Why These Related Problems?

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