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Finding the Third Proportional to 79,911.56 and 169,678.13

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Solution

The third proportional to 79,911.56 and 169,678.13 is: 360,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,911.56 : 169,678.13 = 169,678.13 : x
  2. Step 2: Convert to fraction form
    79,911.56/169,678.13 = 169,678.13/x
  3. Step 3: Cross multiply
    79,911.56x = 169,678.13 × 169,678.13
  4. Step 4: Simplify right side
    79,911.56x = 28,790,666,103.52
  5. Step 5: Solve for x
    x = 28,790,666,103.52/79,911.56
  6. Step 6: Final answer
    x = 360,281.61

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These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.