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Finding the Fourth Proportional to 101,882.64, 140,598.56 and 63,664.41

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Solution

The fourth proportional to 101,882.64, 140,598.56 and 63,664.41 is: 87,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,882.64 : 140,598.56 = 63,664.41 : x
  2. Step 2: Convert to fraction form
    101,882.64/140,598.56 = 63,664.41/x
  3. Step 3: Cross multiply
    101,882.64x = 140,598.56 × 63,664.41
  4. Step 4: Simplify right side
    101,882.64x = 8,951,123,690.30
  5. Step 5: Solve for x
    x = 8,951,123,690.30/101,882.64
  6. Step 6: Final answer
    x = 87,857.21

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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.