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Finding the Fourth Proportional to 168,481.19, 232,314.49 and 137,758.43

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Solution

The fourth proportional to 168,481.19, 232,314.49 and 137,758.43 is: 189,951.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,481.19 : 232,314.49 = 137,758.43 : x
  2. Step 2: Convert to fraction form
    168,481.19/232,314.49 = 137,758.43/x
  3. Step 3: Cross multiply
    168,481.19x = 232,314.49 × 137,758.43
  4. Step 4: Simplify right side
    168,481.19x = 32,003,279,408.65
  5. Step 5: Solve for x
    x = 32,003,279,408.65/168,481.19
  6. Step 6: Final answer
    x = 189,951.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.