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Finding the Third Proportional to 92,711 and 199,399

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Solution

The third proportional to 92,711 and 199,399 is: 428,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,711 : 199,399 = 199,399 : x
  2. Step 2: Convert to fraction form
    92,711/199,399 = 199,399/x
  3. Step 3: Cross multiply
    92,711x = 199,399 × 199,399
  4. Step 4: Simplify right side
    92,711x = 39,759,961,201
  5. Step 5: Solve for x
    x = 39,759,961,201/92,711
  6. Step 6: Final answer
    x = 428,859.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.