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Finding the Third Proportional to 79,924 and 172,314

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Solution

The third proportional to 79,924 and 172,314 is: 371,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,924 : 172,314 = 172,314 : x
  2. Step 2: Convert to fraction form
    79,924/172,314 = 172,314/x
  3. Step 3: Cross multiply
    79,924x = 172,314 × 172,314
  4. Step 4: Simplify right side
    79,924x = 29,692,114,596
  5. Step 5: Solve for x
    x = 29,692,114,596/79,924
  6. Step 6: Final answer
    x = 371,504.36

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.