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Finding the Third Proportional to 86,512.88 and 187,713.75

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Solution

The third proportional to 86,512.88 and 187,713.75 is: 407,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,512.88 : 187,713.75 = 187,713.75 : x
  2. Step 2: Convert to fraction form
    86,512.88/187,713.75 = 187,713.75/x
  3. Step 3: Cross multiply
    86,512.88x = 187,713.75 × 187,713.75
  4. Step 4: Simplify right side
    86,512.88x = 35,236,451,939.06
  5. Step 5: Solve for x
    x = 35,236,451,939.06/86,512.88
  6. Step 6: Final answer
    x = 407,297.20

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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.