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Finding the Fourth Proportional to 87,871.40, 131,782.22 and 43,524.44

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Solution

The fourth proportional to 87,871.40, 131,782.22 and 43,524.44 is: 65,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,871.40 : 131,782.22 = 43,524.44 : x
  2. Step 2: Convert to fraction form
    87,871.40/131,782.22 = 43,524.44/x
  3. Step 3: Cross multiply
    87,871.40x = 131,782.22 × 43,524.44
  4. Step 4: Simplify right side
    87,871.40x = 5,735,747,327.46
  5. Step 5: Solve for x
    x = 5,735,747,327.46/87,871.40
  6. Step 6: Final answer
    x = 65,274.34

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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.