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Finding the Fourth Proportional to 168,387.93, 252,222.78 and 136,229.01

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Solution

The fourth proportional to 168,387.93, 252,222.78 and 136,229.01 is: 204,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,387.93 : 252,222.78 = 136,229.01 : x
  2. Step 2: Convert to fraction form
    168,387.93/252,222.78 = 136,229.01/x
  3. Step 3: Cross multiply
    168,387.93x = 252,222.78 × 136,229.01
  4. Step 4: Simplify right side
    168,387.93x = 34,360,059,618.85
  5. Step 5: Solve for x
    x = 34,360,059,618.85/168,387.93
  6. Step 6: Final answer
    x = 204,052.98

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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.