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Finding the Third Proportional to 174,405 and 356,212

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Solution

The third proportional to 174,405 and 356,212 is: 727,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,405 : 356,212 = 356,212 : x
  2. Step 2: Convert to fraction form
    174,405/356,212 = 356,212/x
  3. Step 3: Cross multiply
    174,405x = 356,212 × 356,212
  4. Step 4: Simplify right side
    174,405x = 126,886,988,944
  5. Step 5: Solve for x
    x = 126,886,988,944/174,405
  6. Step 6: Final answer
    x = 727,542.15

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.