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Finding the Fourth Proportional to 68,114.20, 102,248.10 and 52,600.60

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Solution

The fourth proportional to 68,114.20, 102,248.10 and 52,600.60 is: 78,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.20 : 102,248.10 = 52,600.60 : x
  2. Step 2: Convert to fraction form
    68,114.20/102,248.10 = 52,600.60/x
  3. Step 3: Cross multiply
    68,114.20x = 102,248.10 × 52,600.60
  4. Step 4: Simplify right side
    68,114.20x = 5,378,311,408.86
  5. Step 5: Solve for x
    x = 5,378,311,408.86/68,114.20
  6. Step 6: Final answer
    x = 78,960.21

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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.