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Finding the Third Proportional to 169,316 and 361,132

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Solution

The third proportional to 169,316 and 361,132 is: 770,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,316 : 361,132 = 361,132 : x
  2. Step 2: Convert to fraction form
    169,316/361,132 = 361,132/x
  3. Step 3: Cross multiply
    169,316x = 361,132 × 361,132
  4. Step 4: Simplify right side
    169,316x = 130,416,321,424
  5. Step 5: Solve for x
    x = 130,416,321,424/169,316
  6. Step 6: Final answer
    x = 770,253.97

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.