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Finding the Third Proportional to 62,329.50 and 135,939

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Solution

The third proportional to 62,329.50 and 135,939 is: 296,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,329.50 : 135,939 = 135,939 : x
  2. Step 2: Convert to fraction form
    62,329.50/135,939 = 135,939/x
  3. Step 3: Cross multiply
    62,329.50x = 135,939 × 135,939
  4. Step 4: Simplify right side
    62,329.50x = 18,479,411,721
  5. Step 5: Solve for x
    x = 18,479,411,721/62,329.50
  6. Step 6: Final answer
    x = 296,479.38

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.