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Finding the Third Proportional to 67,324.50 and 141,939

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Solution

The third proportional to 67,324.50 and 141,939 is: 299,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,324.50 : 141,939 = 141,939 : x
  2. Step 2: Convert to fraction form
    67,324.50/141,939 = 141,939/x
  3. Step 3: Cross multiply
    67,324.50x = 141,939 × 141,939
  4. Step 4: Simplify right side
    67,324.50x = 20,146,679,721
  5. Step 5: Solve for x
    x = 20,146,679,721/67,324.50
  6. Step 6: Final answer
    x = 299,247.37

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.