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Finding the Third Proportional to 171,722 and 368,836

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Solution

The third proportional to 171,722 and 368,836 is: 792,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,722 : 368,836 = 368,836 : x
  2. Step 2: Convert to fraction form
    171,722/368,836 = 368,836/x
  3. Step 3: Cross multiply
    171,722x = 368,836 × 368,836
  4. Step 4: Simplify right side
    171,722x = 136,039,994,896
  5. Step 5: Solve for x
    x = 136,039,994,896/171,722
  6. Step 6: Final answer
    x = 792,210.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.