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Finding the Third Proportional to 87,926 and 189,173

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Solution

The third proportional to 87,926 and 189,173 is: 407,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926 : 189,173 = 189,173 : x
  2. Step 2: Convert to fraction form
    87,926/189,173 = 189,173/x
  3. Step 3: Cross multiply
    87,926x = 189,173 × 189,173
  4. Step 4: Simplify right side
    87,926x = 35,786,423,929
  5. Step 5: Solve for x
    x = 35,786,423,929/87,926
  6. Step 6: Final answer
    x = 407,006.16

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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.