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Finding the Fourth Proportional to 101,246.95, 151,747.30 and 71,673.31

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Solution

The fourth proportional to 101,246.95, 151,747.30 and 71,673.31 is: 107,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,246.95 : 151,747.30 = 71,673.31 : x
  2. Step 2: Convert to fraction form
    101,246.95/151,747.30 = 71,673.31/x
  3. Step 3: Cross multiply
    101,246.95x = 151,747.30 × 71,673.31
  4. Step 4: Simplify right side
    101,246.95x = 10,876,231,274.56
  5. Step 5: Solve for x
    x = 10,876,231,274.56/101,246.95
  6. Step 6: Final answer
    x = 107,422.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.