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Finding the Fourth Proportional to 73,569.60, 110,062.80 and 63,817.20

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Solution

The fourth proportional to 73,569.60, 110,062.80 and 63,817.20 is: 95,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,569.60 : 110,062.80 = 63,817.20 : x
  2. Step 2: Convert to fraction form
    73,569.60/110,062.80 = 63,817.20/x
  3. Step 3: Cross multiply
    73,569.60x = 110,062.80 × 63,817.20
  4. Step 4: Simplify right side
    73,569.60x = 7,023,899,720.16
  5. Step 5: Solve for x
    x = 7,023,899,720.16/73,569.60
  6. Step 6: Final answer
    x = 95,472.85

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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.