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Finding the Fourth Proportional to 220,072.52, 330,108.78 and 62,301.80

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Solution

The fourth proportional to 220,072.52, 330,108.78 and 62,301.80 is: 93,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,072.52 : 330,108.78 = 62,301.80 : x
  2. Step 2: Convert to fraction form
    220,072.52/330,108.78 = 62,301.80/x
  3. Step 3: Cross multiply
    220,072.52x = 330,108.78 × 62,301.80
  4. Step 4: Simplify right side
    220,072.52x = 20,566,371,189.80
  5. Step 5: Solve for x
    x = 20,566,371,189.80/220,072.52
  6. Step 6: Final answer
    x = 93,452.70

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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.