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Finding the Fourth Proportional to 168,031.92, 252,067.32 and 55,722

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Solution

The fourth proportional to 168,031.92, 252,067.32 and 55,722 is: 83,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,031.92 : 252,067.32 = 55,722 : x
  2. Step 2: Convert to fraction form
    168,031.92/252,067.32 = 55,722/x
  3. Step 3: Cross multiply
    168,031.92x = 252,067.32 × 55,722
  4. Step 4: Simplify right side
    168,031.92x = 14,045,695,205.04
  5. Step 5: Solve for x
    x = 14,045,695,205.04/168,031.92
  6. Step 6: Final answer
    x = 83,589.45

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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.