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Finding the Fourth Proportional to 73,224.80, 109,691.40 and 42,023.60

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Solution

The fourth proportional to 73,224.80, 109,691.40 and 42,023.60 is: 62,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,224.80 : 109,691.40 = 42,023.60 : x
  2. Step 2: Convert to fraction form
    73,224.80/109,691.40 = 42,023.60/x
  3. Step 3: Cross multiply
    73,224.80x = 109,691.40 × 42,023.60
  4. Step 4: Simplify right side
    73,224.80x = 4,609,627,517.04
  5. Step 5: Solve for x
    x = 4,609,627,517.04/73,224.80
  6. Step 6: Final answer
    x = 62,951.73

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1.5x scale

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.