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Finding the Fourth Proportional to 73,752.76, 110,432.31 and 38,618.56

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Solution

The fourth proportional to 73,752.76, 110,432.31 and 38,618.56 is: 57,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,752.76 : 110,432.31 = 38,618.56 : x
  2. Step 2: Convert to fraction form
    73,752.76/110,432.31 = 38,618.56/x
  3. Step 3: Cross multiply
    73,752.76x = 110,432.31 × 38,618.56
  4. Step 4: Simplify right side
    73,752.76x = 4,264,736,789.67
  5. Step 5: Solve for x
    x = 4,264,736,789.67/73,752.76
  6. Step 6: Final answer
    x = 57,824.78

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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.