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Finding the Third Proportional to 54,151 and 81,226

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Solution

The third proportional to 54,151 and 81,226 is: 121,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,151 : 81,226 = 81,226 : x
  2. Step 2: Convert to fraction form
    54,151/81,226 = 81,226/x
  3. Step 3: Cross multiply
    54,151x = 81,226 × 81,226
  4. Step 4: Simplify right side
    54,151x = 6,597,663,076
  5. Step 5: Solve for x
    x = 6,597,663,076/54,151
  6. Step 6: Final answer
    x = 121,838.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.