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Finding the Third Proportional to 103,665 and 155,463

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Solution

The third proportional to 103,665 and 155,463 is: 233,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665 : 155,463 = 155,463 : x
  2. Step 2: Convert to fraction form
    103,665/155,463 = 155,463/x
  3. Step 3: Cross multiply
    103,665x = 155,463 × 155,463
  4. Step 4: Simplify right side
    103,665x = 24,168,744,369
  5. Step 5: Solve for x
    x = 24,168,744,369/103,665
  6. Step 6: Final answer
    x = 233,142.76

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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.