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Finding the Third Proportional to 168,705 and 254,800

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Solution

The third proportional to 168,705 and 254,800 is: 384,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,705 : 254,800 = 254,800 : x
  2. Step 2: Convert to fraction form
    168,705/254,800 = 254,800/x
  3. Step 3: Cross multiply
    168,705x = 254,800 × 254,800
  4. Step 4: Simplify right side
    168,705x = 64,923,040,000
  5. Step 5: Solve for x
    x = 64,923,040,000/168,705
  6. Step 6: Final answer
    x = 384,831.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.