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Finding the Third Proportional to 181,982 and 393,556

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Solution

The third proportional to 181,982 and 393,556 is: 851,107.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,982 : 393,556 = 393,556 : x
  2. Step 2: Convert to fraction form
    181,982/393,556 = 393,556/x
  3. Step 3: Cross multiply
    181,982x = 393,556 × 393,556
  4. Step 4: Simplify right side
    181,982x = 154,886,325,136
  5. Step 5: Solve for x
    x = 154,886,325,136/181,982
  6. Step 6: Final answer
    x = 851,107.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.