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Finding the Third Proportional to 100,837 and 211,994

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Solution

The third proportional to 100,837 and 211,994 is: 445,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,837 : 211,994 = 211,994 : x
  2. Step 2: Convert to fraction form
    100,837/211,994 = 211,994/x
  3. Step 3: Cross multiply
    100,837x = 211,994 × 211,994
  4. Step 4: Simplify right side
    100,837x = 44,941,456,036
  5. Step 5: Solve for x
    x = 44,941,456,036/100,837
  6. Step 6: Final answer
    x = 445,684.18

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.