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Finding the Fourth Proportional to 238,432.80, 357,649.20 and 149,748.60

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Solution

The fourth proportional to 238,432.80, 357,649.20 and 149,748.60 is: 224,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,432.80 : 357,649.20 = 149,748.60 : x
  2. Step 2: Convert to fraction form
    238,432.80/357,649.20 = 149,748.60/x
  3. Step 3: Cross multiply
    238,432.80x = 357,649.20 × 149,748.60
  4. Step 4: Simplify right side
    238,432.80x = 53,557,466,991.12
  5. Step 5: Solve for x
    x = 53,557,466,991.12/238,432.80
  6. Step 6: Final answer
    x = 224,622.90

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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.