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Finding the Third Proportional to 79,632 and 115,112

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Solution

The third proportional to 79,632 and 115,112 is: 166,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,632 : 115,112 = 115,112 : x
  2. Step 2: Convert to fraction form
    79,632/115,112 = 115,112/x
  3. Step 3: Cross multiply
    79,632x = 115,112 × 115,112
  4. Step 4: Simplify right side
    79,632x = 13,250,772,544
  5. Step 5: Solve for x
    x = 13,250,772,544/79,632
  6. Step 6: Final answer
    x = 166,400.10

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.