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Finding the Fourth Proportional to 220,451.75, 330,733.14 and 62,680.20

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Solution

The fourth proportional to 220,451.75, 330,733.14 and 62,680.20 is: 94,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,451.75 : 330,733.14 = 62,680.20 : x
  2. Step 2: Convert to fraction form
    220,451.75/330,733.14 = 62,680.20/x
  3. Step 3: Cross multiply
    220,451.75x = 330,733.14 × 62,680.20
  4. Step 4: Simplify right side
    220,451.75x = 20,730,419,048.43
  5. Step 5: Solve for x
    x = 20,730,419,048.43/220,451.75
  6. Step 6: Final answer
    x = 94,036.09

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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.