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Finding the Fourth Proportional to 220,713.68, 331,073.55 and 62,942.15

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Solution

The fourth proportional to 220,713.68, 331,073.55 and 62,942.15 is: 94,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,713.68 : 331,073.55 = 62,942.15 : x
  2. Step 2: Convert to fraction form
    220,713.68/331,073.55 = 62,942.15/x
  3. Step 3: Cross multiply
    220,713.68x = 331,073.55 × 62,942.15
  4. Step 4: Simplify right side
    220,713.68x = 20,838,479,389.76
  5. Step 5: Solve for x
    x = 20,838,479,389.76/220,713.68
  6. Step 6: Final answer
    x = 94,414.08

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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.