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Finding the Fourth Proportional to 220,178.20, 330,234.90 and 62,422.60

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Solution

The fourth proportional to 220,178.20, 330,234.90 and 62,422.60 is: 93,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,178.20 : 330,234.90 = 62,422.60 : x
  2. Step 2: Convert to fraction form
    220,178.20/330,234.90 = 62,422.60/x
  3. Step 3: Cross multiply
    220,178.20x = 330,234.90 × 62,422.60
  4. Step 4: Simplify right side
    220,178.20x = 20,614,121,068.74
  5. Step 5: Solve for x
    x = 20,614,121,068.74/220,178.20
  6. Step 6: Final answer
    x = 93,624.71

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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.