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Finding the Fourth Proportional to 73,417.20, 110,125.80 and 38,425.20

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Solution

The fourth proportional to 73,417.20, 110,125.80 and 38,425.20 is: 57,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,417.20 : 110,125.80 = 38,425.20 : x
  2. Step 2: Convert to fraction form
    73,417.20/110,125.80 = 38,425.20/x
  3. Step 3: Cross multiply
    73,417.20x = 110,125.80 × 38,425.20
  4. Step 4: Simplify right side
    73,417.20x = 4,231,605,890.16
  5. Step 5: Solve for x
    x = 4,231,605,890.16/73,417.20
  6. Step 6: Final answer
    x = 57,637.80

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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.