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Finding the Fourth Proportional to 113,213.20, 169,819.80 and 62,474.80

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Solution

The fourth proportional to 113,213.20, 169,819.80 and 62,474.80 is: 93,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,213.20 : 169,819.80 = 62,474.80 : x
  2. Step 2: Convert to fraction form
    113,213.20/169,819.80 = 62,474.80/x
  3. Step 3: Cross multiply
    113,213.20x = 169,819.80 × 62,474.80
  4. Step 4: Simplify right side
    113,213.20x = 10,609,458,041.04
  5. Step 5: Solve for x
    x = 10,609,458,041.04/113,213.20
  6. Step 6: Final answer
    x = 93,712.20

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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.