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Finding the Fourth Proportional to 168,872.70, 253,598.85 and 149,940.12

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Solution

The fourth proportional to 168,872.70, 253,598.85 and 149,940.12 is: 225,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,872.70 : 253,598.85 = 149,940.12 : x
  2. Step 2: Convert to fraction form
    168,872.70/253,598.85 = 149,940.12/x
  3. Step 3: Cross multiply
    168,872.70x = 253,598.85 × 149,940.12
  4. Step 4: Simplify right side
    168,872.70x = 38,024,642,000.86
  5. Step 5: Solve for x
    x = 38,024,642,000.86/168,872.70
  6. Step 6: Final answer
    x = 225,167.49

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1.5x scale

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.