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Finding the Fourth Proportional to 67,986.70, 101,939.55 and 41,710.30

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Solution

The fourth proportional to 67,986.70, 101,939.55 and 41,710.30 is: 62,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,986.70 : 101,939.55 = 41,710.30 : x
  2. Step 2: Convert to fraction form
    67,986.70/101,939.55 = 41,710.30/x
  3. Step 3: Cross multiply
    67,986.70x = 101,939.55 × 41,710.30
  4. Step 4: Simplify right side
    67,986.70x = 4,251,929,212.37
  5. Step 5: Solve for x
    x = 4,251,929,212.37/67,986.70
  6. Step 6: Final answer
    x = 62,540.60

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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.