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Finding the Third Proportional to 79,287.19 and 165,115.13

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Solution

The third proportional to 79,287.19 and 165,115.13 is: 343,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,287.19 : 165,115.13 = 165,115.13 : x
  2. Step 2: Convert to fraction form
    79,287.19/165,115.13 = 165,115.13/x
  3. Step 3: Cross multiply
    79,287.19x = 165,115.13 × 165,115.13
  4. Step 4: Simplify right side
    79,287.19x = 27,263,004,503.77
  5. Step 5: Solve for x
    x = 27,263,004,503.77/79,287.19
  6. Step 6: Final answer
    x = 343,851.33

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.