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Finding the Third Proportional to 81,652 and 124,908

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Solution

The third proportional to 81,652 and 124,908 is: 191,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,652 : 124,908 = 124,908 : x
  2. Step 2: Convert to fraction form
    81,652/124,908 = 124,908/x
  3. Step 3: Cross multiply
    81,652x = 124,908 × 124,908
  4. Step 4: Simplify right side
    81,652x = 15,602,008,464
  5. Step 5: Solve for x
    x = 15,602,008,464/81,652
  6. Step 6: Final answer
    x = 191,079.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.