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Finding the Third Proportional to 71,979.75 and 113,892.75

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Solution

The third proportional to 71,979.75 and 113,892.75 is: 180,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,979.75 : 113,892.75 = 113,892.75 : x
  2. Step 2: Convert to fraction form
    71,979.75/113,892.75 = 113,892.75/x
  3. Step 3: Cross multiply
    71,979.75x = 113,892.75 × 113,892.75
  4. Step 4: Simplify right side
    71,979.75x = 12,971,558,502.56
  5. Step 5: Solve for x
    x = 12,971,558,502.56/71,979.75
  6. Step 6: Final answer
    x = 180,211.22

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.