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Finding the Fourth Proportional to 167,879.69, 251,923.22 and 68,040.71

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Solution

The fourth proportional to 167,879.69, 251,923.22 and 68,040.71 is: 102,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,879.69 : 251,923.22 = 68,040.71 : x
  2. Step 2: Convert to fraction form
    167,879.69/251,923.22 = 68,040.71/x
  3. Step 3: Cross multiply
    167,879.69x = 251,923.22 × 68,040.71
  4. Step 4: Simplify right side
    167,879.69x = 17,141,034,414.08
  5. Step 5: Solve for x
    x = 17,141,034,414.08/167,879.69
  6. Step 6: Final answer
    x = 102,103.09

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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.