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Finding the Fourth Proportional to 372,193.52, 557,845.52 and 135,258.80

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Solution

The fourth proportional to 372,193.52, 557,845.52 and 135,258.80 is: 202,726.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,193.52 : 557,845.52 = 135,258.80 : x
  2. Step 2: Convert to fraction form
    372,193.52/557,845.52 = 135,258.80/x
  3. Step 3: Cross multiply
    372,193.52x = 557,845.52 × 135,258.80
  4. Step 4: Simplify right side
    372,193.52x = 75,453,515,620.58
  5. Step 5: Solve for x
    x = 75,453,515,620.58/372,193.52
  6. Step 6: Final answer
    x = 202,726.57

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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.