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Finding the Fourth Proportional to 168,872.43, 253,598.73 and 149,939.70

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Solution

The fourth proportional to 168,872.43, 253,598.73 and 149,939.70 is: 225,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,872.43 : 253,598.73 = 149,939.70 : x
  2. Step 2: Convert to fraction form
    168,872.43/253,598.73 = 149,939.70/x
  3. Step 3: Cross multiply
    168,872.43x = 253,598.73 × 149,939.70
  4. Step 4: Simplify right side
    168,872.43x = 38,024,517,496.58
  5. Step 5: Solve for x
    x = 38,024,517,496.58/168,872.43
  6. Step 6: Final answer
    x = 225,167.11

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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.