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Finding the Fourth Proportional to 168,781.80, 253,269.90 and 63,676.20

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Solution

The fourth proportional to 168,781.80, 253,269.90 and 63,676.20 is: 95,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,781.80 : 253,269.90 = 63,676.20 : x
  2. Step 2: Convert to fraction form
    168,781.80/253,269.90 = 63,676.20/x
  3. Step 3: Cross multiply
    168,781.80x = 253,269.90 × 63,676.20
  4. Step 4: Simplify right side
    168,781.80x = 16,127,264,806.38
  5. Step 5: Solve for x
    x = 16,127,264,806.38/168,781.80
  6. Step 6: Final answer
    x = 95,550.97

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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.