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Finding the Third Proportional to 103,615 and 157,449

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Solution

The third proportional to 103,615 and 157,449 is: 239,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615 : 157,449 = 157,449 : x
  2. Step 2: Convert to fraction form
    103,615/157,449 = 157,449/x
  3. Step 3: Cross multiply
    103,615x = 157,449 × 157,449
  4. Step 4: Simplify right side
    103,615x = 24,790,187,601
  5. Step 5: Solve for x
    x = 24,790,187,601/103,615
  6. Step 6: Final answer
    x = 239,252.88

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.