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Finding the Third Proportional to 82,174 and 117,425

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Solution

The third proportional to 82,174 and 117,425 is: 167,797.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,174 : 117,425 = 117,425 : x
  2. Step 2: Convert to fraction form
    82,174/117,425 = 117,425/x
  3. Step 3: Cross multiply
    82,174x = 117,425 × 117,425
  4. Step 4: Simplify right side
    82,174x = 13,788,630,625
  5. Step 5: Solve for x
    x = 13,788,630,625/82,174
  6. Step 6: Final answer
    x = 167,797.97

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.