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Finding the Third Proportional to 169,263 and 371,739

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Solution

The third proportional to 169,263 and 371,739 is: 816,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,263 : 371,739 = 371,739 : x
  2. Step 2: Convert to fraction form
    169,263/371,739 = 371,739/x
  3. Step 3: Cross multiply
    169,263x = 371,739 × 371,739
  4. Step 4: Simplify right side
    169,263x = 138,189,884,121
  5. Step 5: Solve for x
    x = 138,189,884,121/169,263
  6. Step 6: Final answer
    x = 816,421.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.