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Finding the Fourth Proportional to 101,919.41, 140,644.05 and 56,600.27

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Solution

The fourth proportional to 101,919.41, 140,644.05 and 56,600.27 is: 78,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,919.41 : 140,644.05 = 56,600.27 : x
  2. Step 2: Convert to fraction form
    101,919.41/140,644.05 = 56,600.27/x
  3. Step 3: Cross multiply
    101,919.41x = 140,644.05 × 56,600.27
  4. Step 4: Simplify right side
    101,919.41x = 7,960,491,203.89
  5. Step 5: Solve for x
    x = 7,960,491,203.89/101,919.41
  6. Step 6: Final answer
    x = 78,105.74

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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.