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Finding the Fourth Proportional to 67,096.60, 100,839.30 and 65,930.20

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Solution

The fourth proportional to 67,096.60, 100,839.30 and 65,930.20 is: 99,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,096.60 : 100,839.30 = 65,930.20 : x
  2. Step 2: Convert to fraction form
    67,096.60/100,839.30 = 65,930.20/x
  3. Step 3: Cross multiply
    67,096.60x = 100,839.30 × 65,930.20
  4. Step 4: Simplify right side
    67,096.60x = 6,648,355,216.86
  5. Step 5: Solve for x
    x = 6,648,355,216.86/67,096.60
  6. Step 6: Final answer
    x = 99,086.32

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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.