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Finding the Fourth Proportional to 168,388.31, 252,223.34 and 136,229.38

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Solution

The fourth proportional to 168,388.31, 252,223.34 and 136,229.38 is: 204,053.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,388.31 : 252,223.34 = 136,229.38 : x
  2. Step 2: Convert to fraction form
    168,388.31/252,223.34 = 136,229.38/x
  3. Step 3: Cross multiply
    168,388.31x = 252,223.34 × 136,229.38
  4. Step 4: Simplify right side
    168,388.31x = 34,360,228,939.74
  5. Step 5: Solve for x
    x = 34,360,228,939.74/168,388.31
  6. Step 6: Final answer
    x = 204,053.54

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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.