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Finding the Fourth Proportional to 168,481.52, 252,590.16 and 84,237.92

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Solution

The fourth proportional to 168,481.52, 252,590.16 and 84,237.92 is: 126,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,481.52 : 252,590.16 = 84,237.92 : x
  2. Step 2: Convert to fraction form
    168,481.52/252,590.16 = 84,237.92/x
  3. Step 3: Cross multiply
    168,481.52x = 252,590.16 × 84,237.92
  4. Step 4: Simplify right side
    168,481.52x = 21,277,669,690.87
  5. Step 5: Solve for x
    x = 21,277,669,690.87/168,481.52
  6. Step 6: Final answer
    x = 126,290.82

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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.