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Finding the Third Proportional to 170,899 and 265,306

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Solution

The third proportional to 170,899 and 265,306 is: 411,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,899 : 265,306 = 265,306 : x
  2. Step 2: Convert to fraction form
    170,899/265,306 = 265,306/x
  3. Step 3: Cross multiply
    170,899x = 265,306 × 265,306
  4. Step 4: Simplify right side
    170,899x = 70,387,273,636
  5. Step 5: Solve for x
    x = 70,387,273,636/170,899
  6. Step 6: Final answer
    x = 411,864.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.