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Finding the Third Proportional to 185,019 and 398,103.75

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Solution

The third proportional to 185,019 and 398,103.75 is: 856,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,019 : 398,103.75 = 398,103.75 : x
  2. Step 2: Convert to fraction form
    185,019/398,103.75 = 398,103.75/x
  3. Step 3: Cross multiply
    185,019x = 398,103.75 × 398,103.75
  4. Step 4: Simplify right side
    185,019x = 158,486,595,764.06
  5. Step 5: Solve for x
    x = 158,486,595,764.06/185,019
  6. Step 6: Final answer
    x = 856,596.33

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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.