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Finding the Fourth Proportional to 449,363.80, 674,142.90 and 149,793.40

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Solution

The fourth proportional to 449,363.80, 674,142.90 and 149,793.40 is: 224,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,363.80 : 674,142.90 = 149,793.40 : x
  2. Step 2: Convert to fraction form
    449,363.80/674,142.90 = 149,793.40/x
  3. Step 3: Cross multiply
    449,363.80x = 674,142.90 × 149,793.40
  4. Step 4: Simplify right side
    449,363.80x = 100,982,157,076.86
  5. Step 5: Solve for x
    x = 100,982,157,076.86/449,363.80
  6. Step 6: Final answer
    x = 224,722.50

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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.