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Finding the Fourth Proportional to 159,885.82, 220,644.22 and 88,265.88

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Solution

The fourth proportional to 159,885.82, 220,644.22 and 88,265.88 is: 121,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,885.82 : 220,644.22 = 88,265.88 : x
  2. Step 2: Convert to fraction form
    159,885.82/220,644.22 = 88,265.88/x
  3. Step 3: Cross multiply
    159,885.82x = 220,644.22 × 88,265.88
  4. Step 4: Simplify right side
    159,885.82x = 19,475,356,245.21
  5. Step 5: Solve for x
    x = 19,475,356,245.21/159,885.82
  6. Step 6: Final answer
    x = 121,807.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.