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Finding the Fourth Proportional to 168,957.92, 253,524.24 and 74,254.55

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Solution

The fourth proportional to 168,957.92, 253,524.24 and 74,254.55 is: 111,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,957.92 : 253,524.24 = 74,254.55 : x
  2. Step 2: Convert to fraction form
    168,957.92/253,524.24 = 74,254.55/x
  3. Step 3: Cross multiply
    168,957.92x = 253,524.24 × 74,254.55
  4. Step 4: Simplify right side
    168,957.92x = 18,825,328,355.29
  5. Step 5: Solve for x
    x = 18,825,328,355.29/168,957.92
  6. Step 6: Final answer
    x = 111,420.22

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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.