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Finding the Third Proportional to 82,158 and 168,202

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Solution

The third proportional to 82,158 and 168,202 is: 344,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,158 : 168,202 = 168,202 : x
  2. Step 2: Convert to fraction form
    82,158/168,202 = 168,202/x
  3. Step 3: Cross multiply
    82,158x = 168,202 × 168,202
  4. Step 4: Simplify right side
    82,158x = 28,291,912,804
  5. Step 5: Solve for x
    x = 28,291,912,804/82,158
  6. Step 6: Final answer
    x = 344,359.80

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.