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Finding the Fourth Proportional to 101,963.36, 140,760.60 and 63,744.14

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Solution

The fourth proportional to 101,963.36, 140,760.60 and 63,744.14 is: 87,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,963.36 : 140,760.60 = 63,744.14 : x
  2. Step 2: Convert to fraction form
    101,963.36/140,760.60 = 63,744.14/x
  3. Step 3: Cross multiply
    101,963.36x = 140,760.60 × 63,744.14
  4. Step 4: Simplify right side
    101,963.36x = 8,972,663,392.88
  5. Step 5: Solve for x
    x = 8,972,663,392.88/101,963.36
  6. Step 6: Final answer
    x = 87,998.90

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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.