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Finding the Third Proportional to 79,022 and 171,220

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Solution

The third proportional to 79,022 and 171,220 is: 370,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,022 : 171,220 = 171,220 : x
  2. Step 2: Convert to fraction form
    79,022/171,220 = 171,220/x
  3. Step 3: Cross multiply
    79,022x = 171,220 × 171,220
  4. Step 4: Simplify right side
    79,022x = 29,316,288,400
  5. Step 5: Solve for x
    x = 29,316,288,400/79,022
  6. Step 6: Final answer
    x = 370,988.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.