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Finding the Fourth Proportional to 67,446.60, 101,231.10 and 34,189.80

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Solution

The fourth proportional to 67,446.60, 101,231.10 and 34,189.80 is: 51,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,446.60 : 101,231.10 = 34,189.80 : x
  2. Step 2: Convert to fraction form
    67,446.60/101,231.10 = 34,189.80/x
  3. Step 3: Cross multiply
    67,446.60x = 101,231.10 × 34,189.80
  4. Step 4: Simplify right side
    67,446.60x = 3,461,071,062.78
  5. Step 5: Solve for x
    x = 3,461,071,062.78/67,446.60
  6. Step 6: Final answer
    x = 51,315.72

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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.