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Finding the Third Proportional to 82,172 and 168,232

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Solution

The third proportional to 82,172 and 168,232 is: 344,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,172 : 168,232 = 168,232 : x
  2. Step 2: Convert to fraction form
    82,172/168,232 = 168,232/x
  3. Step 3: Cross multiply
    82,172x = 168,232 × 168,232
  4. Step 4: Simplify right side
    82,172x = 28,302,005,824
  5. Step 5: Solve for x
    x = 28,302,005,824/82,172
  6. Step 6: Final answer
    x = 344,423.96

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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.