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Finding the Fourth Proportional to 67,441.90, 101,183.11 and 31,930.29

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Solution

The fourth proportional to 67,441.90, 101,183.11 and 31,930.29 is: 47,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,441.90 : 101,183.11 = 31,930.29 : x
  2. Step 2: Convert to fraction form
    67,441.90/101,183.11 = 31,930.29/x
  3. Step 3: Cross multiply
    67,441.90x = 101,183.11 × 31,930.29
  4. Step 4: Simplify right side
    67,441.90x = 3,230,806,045.40
  5. Step 5: Solve for x
    x = 3,230,806,045.40/67,441.90
  6. Step 6: Final answer
    x = 47,905.03

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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.