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Finding the Fourth Proportional to 167,861.82, 251,700.68 and 66,557.28

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Solution

The fourth proportional to 167,861.82, 251,700.68 and 66,557.28 is: 99,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,861.82 : 251,700.68 = 66,557.28 : x
  2. Step 2: Convert to fraction form
    167,861.82/251,700.68 = 66,557.28/x
  3. Step 3: Cross multiply
    167,861.82x = 251,700.68 × 66,557.28
  4. Step 4: Simplify right side
    167,861.82x = 16,752,512,634.95
  5. Step 5: Solve for x
    x = 16,752,512,634.95/167,861.82
  6. Step 6: Final answer
    x = 99,799.42

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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.