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Finding the Fourth Proportional to 167,889.66, 251,834.49 and 115,139.22

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Solution

The fourth proportional to 167,889.66, 251,834.49 and 115,139.22 is: 172,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,889.66 : 251,834.49 = 115,139.22 : x
  2. Step 2: Convert to fraction form
    167,889.66/251,834.49 = 115,139.22/x
  3. Step 3: Cross multiply
    167,889.66x = 251,834.49 × 115,139.22
  4. Step 4: Simplify right side
    167,889.66x = 28,996,026,747.70
  5. Step 5: Solve for x
    x = 28,996,026,747.70/167,889.66
  6. Step 6: Final answer
    x = 172,708.83

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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.