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Finding the Fourth Proportional to 167,531.82, 251,422.31 and 67,692.88

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Solution

The fourth proportional to 167,531.82, 251,422.31 and 67,692.88 is: 101,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,531.82 : 251,422.31 = 67,692.88 : x
  2. Step 2: Convert to fraction form
    167,531.82/251,422.31 = 67,692.88/x
  3. Step 3: Cross multiply
    167,531.82x = 251,422.31 × 67,692.88
  4. Step 4: Simplify right side
    167,531.82x = 17,019,500,489.81
  5. Step 5: Solve for x
    x = 17,019,500,489.81/167,531.82
  6. Step 6: Final answer
    x = 101,589.66

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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.