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Finding the Fourth Proportional to 167,782.72, 251,761.52 and 68,016.64

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Solution

The fourth proportional to 167,782.72, 251,761.52 and 68,016.64 is: 102,060.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,782.72 : 251,761.52 = 68,016.64 : x
  2. Step 2: Convert to fraction form
    167,782.72/251,761.52 = 68,016.64/x
  3. Step 3: Cross multiply
    167,782.72x = 251,761.52 × 68,016.64
  4. Step 4: Simplify right side
    167,782.72x = 17,123,972,671.69
  5. Step 5: Solve for x
    x = 17,123,972,671.69/167,782.72
  6. Step 6: Final answer
    x = 102,060.41

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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.