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Finding the Fourth Proportional to 168,489.47, 252,736.92 and 56,168.16

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Solution

The fourth proportional to 168,489.47, 252,736.92 and 56,168.16 is: 84,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,489.47 : 252,736.92 = 56,168.16 : x
  2. Step 2: Convert to fraction form
    168,489.47/252,736.92 = 56,168.16/x
  3. Step 3: Cross multiply
    168,489.47x = 252,736.92 × 56,168.16
  4. Step 4: Simplify right side
    168,489.47x = 14,195,767,760.47
  5. Step 5: Solve for x
    x = 14,195,767,760.47/168,489.47
  6. Step 6: Final answer
    x = 84,253.15

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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.