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Finding the Third Proportional to 186,778 and 251,643

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Solution

The third proportional to 186,778 and 251,643 is: 339,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,778 : 251,643 = 251,643 : x
  2. Step 2: Convert to fraction form
    186,778/251,643 = 251,643/x
  3. Step 3: Cross multiply
    186,778x = 251,643 × 251,643
  4. Step 4: Simplify right side
    186,778x = 63,324,199,449
  5. Step 5: Solve for x
    x = 63,324,199,449/186,778
  6. Step 6: Final answer
    x = 339,034.57

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.