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Finding the Fourth Proportional to 101,939.00, 140,694.14 and 58,912.55

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Solution

The fourth proportional to 101,939.00, 140,694.14 and 58,912.55 is: 81,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,939.00 : 140,694.14 = 58,912.55 : x
  2. Step 2: Convert to fraction form
    101,939.00/140,694.14 = 58,912.55/x
  3. Step 3: Cross multiply
    101,939.00x = 140,694.14 × 58,912.55
  4. Step 4: Simplify right side
    101,939.00x = 8,288,649,559.42
  5. Step 5: Solve for x
    x = 8,288,649,559.42/101,939.00
  6. Step 6: Final answer
    x = 81,309.90

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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.