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Finding the Fourth Proportional to 168,122.88, 252,182.16 and 55,854.72

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Solution

The fourth proportional to 168,122.88, 252,182.16 and 55,854.72 is: 83,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,122.88 : 252,182.16 = 55,854.72 : x
  2. Step 2: Convert to fraction form
    168,122.88/252,182.16 = 55,854.72/x
  3. Step 3: Cross multiply
    168,122.88x = 252,182.16 × 55,854.72
  4. Step 4: Simplify right side
    168,122.88x = 14,085,563,935.80
  5. Step 5: Solve for x
    x = 14,085,563,935.80/168,122.88
  6. Step 6: Final answer
    x = 83,781.36

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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.