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Finding the Third Proportional to 167,539.50 and 339,939

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Solution

The third proportional to 167,539.50 and 339,939 is: 689,738.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,539.50 : 339,939 = 339,939 : x
  2. Step 2: Convert to fraction form
    167,539.50/339,939 = 339,939/x
  3. Step 3: Cross multiply
    167,539.50x = 339,939 × 339,939
  4. Step 4: Simplify right side
    167,539.50x = 115,558,523,721
  5. Step 5: Solve for x
    x = 115,558,523,721/167,539.50
  6. Step 6: Final answer
    x = 689,738.98

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.