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Finding the Fourth Proportional to 220,419.52, 330,579.60 and 62,644.48

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Solution

The fourth proportional to 220,419.52, 330,579.60 and 62,644.48 is: 93,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,419.52 : 330,579.60 = 62,644.48 : x
  2. Step 2: Convert to fraction form
    220,419.52/330,579.60 = 62,644.48/x
  3. Step 3: Cross multiply
    220,419.52x = 330,579.60 × 62,644.48
  4. Step 4: Simplify right side
    220,419.52x = 20,708,987,140.61
  5. Step 5: Solve for x
    x = 20,708,987,140.61/220,419.52
  6. Step 6: Final answer
    x = 93,952.60

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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.