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Finding the Fourth Proportional to 101,863.98, 140,571.23 and 56,542.37

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Solution

The fourth proportional to 101,863.98, 140,571.23 and 56,542.37 is: 78,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,863.98 : 140,571.23 = 56,542.37 : x
  2. Step 2: Convert to fraction form
    101,863.98/140,571.23 = 56,542.37/x
  3. Step 3: Cross multiply
    101,863.98x = 140,571.23 × 56,542.37
  4. Step 4: Simplify right side
    101,863.98x = 7,948,229,512.45
  5. Step 5: Solve for x
    x = 7,948,229,512.45/101,863.98
  6. Step 6: Final answer
    x = 78,027.87

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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.