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Finding the Third Proportional to 82,338 and 177,378

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Solution

The third proportional to 82,338 and 177,378 is: 382,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,338 : 177,378 = 177,378 : x
  2. Step 2: Convert to fraction form
    82,338/177,378 = 177,378/x
  3. Step 3: Cross multiply
    82,338x = 177,378 × 177,378
  4. Step 4: Simplify right side
    82,338x = 31,462,954,884
  5. Step 5: Solve for x
    x = 31,462,954,884/82,338
  6. Step 6: Final answer
    x = 382,119.49

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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.