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Finding the Fourth Proportional to 168,766.20, 253,149.30 and 149,083.20

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Solution

The fourth proportional to 168,766.20, 253,149.30 and 149,083.20 is: 223,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,766.20 : 253,149.30 = 149,083.20 : x
  2. Step 2: Convert to fraction form
    168,766.20/253,149.30 = 149,083.20/x
  3. Step 3: Cross multiply
    168,766.20x = 253,149.30 × 149,083.20
  4. Step 4: Simplify right side
    168,766.20x = 37,740,307,721.76
  5. Step 5: Solve for x
    x = 37,740,307,721.76/168,766.20
  6. Step 6: Final answer
    x = 223,624.80

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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.