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Finding the Fourth Proportional to 167,909.56, 251,864.05 and 115,159.12

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Solution

The fourth proportional to 167,909.56, 251,864.05 and 115,159.12 is: 172,738.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,909.56 : 251,864.05 = 115,159.12 : x
  2. Step 2: Convert to fraction form
    167,909.56/251,864.05 = 115,159.12/x
  3. Step 3: Cross multiply
    167,909.56x = 251,864.05 × 115,159.12
  4. Step 4: Simplify right side
    167,909.56x = 29,004,442,357.64
  5. Step 5: Solve for x
    x = 29,004,442,357.64/167,909.56
  6. Step 6: Final answer
    x = 172,738.48

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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.