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Finding the Fourth Proportional to 168,503.96, 252,755.22 and 68,641.88

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Solution

The fourth proportional to 168,503.96, 252,755.22 and 68,641.88 is: 102,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,503.96 : 252,755.22 = 68,641.88 : x
  2. Step 2: Convert to fraction form
    168,503.96/252,755.22 = 68,641.88/x
  3. Step 3: Cross multiply
    168,503.96x = 252,755.22 × 68,641.88
  4. Step 4: Simplify right side
    168,503.96x = 17,349,593,480.61
  5. Step 5: Solve for x
    x = 17,349,593,480.61/168,503.96
  6. Step 6: Final answer
    x = 102,962.53

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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.