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Finding the Fourth Proportional to 68,348.20, 102,599.10 and 52,834.60

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Solution

The fourth proportional to 68,348.20, 102,599.10 and 52,834.60 is: 79,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.20 : 102,599.10 = 52,834.60 : x
  2. Step 2: Convert to fraction form
    68,348.20/102,599.10 = 52,834.60/x
  3. Step 3: Cross multiply
    68,348.20x = 102,599.10 × 52,834.60
  4. Step 4: Simplify right side
    68,348.20x = 5,420,782,408.86
  5. Step 5: Solve for x
    x = 5,420,782,408.86/68,348.20
  6. Step 6: Final answer
    x = 79,311.27

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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.