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Finding the Third Proportional to 79,947 and 115,501

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Solution

The third proportional to 79,947 and 115,501 is: 166,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,947 : 115,501 = 115,501 : x
  2. Step 2: Convert to fraction form
    79,947/115,501 = 115,501/x
  3. Step 3: Cross multiply
    79,947x = 115,501 × 115,501
  4. Step 4: Simplify right side
    79,947x = 13,340,481,001
  5. Step 5: Solve for x
    x = 13,340,481,001/79,947
  6. Step 6: Final answer
    x = 166,866.56

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.