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Finding the Third Proportional to 83,361 and 178,629

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Solution

The third proportional to 83,361 and 178,629 is: 382,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,361 : 178,629 = 178,629 : x
  2. Step 2: Convert to fraction form
    83,361/178,629 = 178,629/x
  3. Step 3: Cross multiply
    83,361x = 178,629 × 178,629
  4. Step 4: Simplify right side
    83,361x = 31,908,319,641
  5. Step 5: Solve for x
    x = 31,908,319,641/83,361
  6. Step 6: Final answer
    x = 382,772.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.