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Finding the Fourth Proportional to 168,144.42, 252,230.98 and 48,201.78

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Solution

The fourth proportional to 168,144.42, 252,230.98 and 48,201.78 is: 72,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,144.42 : 252,230.98 = 48,201.78 : x
  2. Step 2: Convert to fraction form
    168,144.42/252,230.98 = 48,201.78/x
  3. Step 3: Cross multiply
    168,144.42x = 252,230.98 × 48,201.78
  4. Step 4: Simplify right side
    168,144.42x = 12,157,982,207.14
  5. Step 5: Solve for x
    x = 12,157,982,207.14/168,144.42
  6. Step 6: Final answer
    x = 72,306.78

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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.