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Finding the Third Proportional to 81,334 and 176,240

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Solution

The third proportional to 81,334 and 176,240 is: 381,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,334 : 176,240 = 176,240 : x
  2. Step 2: Convert to fraction form
    81,334/176,240 = 176,240/x
  3. Step 3: Cross multiply
    81,334x = 176,240 × 176,240
  4. Step 4: Simplify right side
    81,334x = 31,060,537,600
  5. Step 5: Solve for x
    x = 31,060,537,600/81,334
  6. Step 6: Final answer
    x = 381,888.73

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.