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Finding the Fourth Proportional to 101,982.28, 140,745.54 and 58,963.60

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Solution

The fourth proportional to 101,982.28, 140,745.54 and 58,963.60 is: 81,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.28 : 140,745.54 = 58,963.60 : x
  2. Step 2: Convert to fraction form
    101,982.28/140,745.54 = 58,963.60/x
  3. Step 3: Cross multiply
    101,982.28x = 140,745.54 × 58,963.60
  4. Step 4: Simplify right side
    101,982.28x = 8,298,863,722.34
  5. Step 5: Solve for x
    x = 8,298,863,722.34/101,982.28
  6. Step 6: Final answer
    x = 81,375.55

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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.