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Finding the Fourth Proportional to 224,939.20, 337,408.80 and 91,775.20

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Solution

The fourth proportional to 224,939.20, 337,408.80 and 91,775.20 is: 137,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,939.20 : 337,408.80 = 91,775.20 : x
  2. Step 2: Convert to fraction form
    224,939.20/337,408.80 = 91,775.20/x
  3. Step 3: Cross multiply
    224,939.20x = 337,408.80 × 91,775.20
  4. Step 4: Simplify right side
    224,939.20x = 30,965,760,101.76
  5. Step 5: Solve for x
    x = 30,965,760,101.76/224,939.20
  6. Step 6: Final answer
    x = 137,662.80

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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.