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Finding the Third Proportional to 103,998 and 212,924

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Solution

The third proportional to 103,998 and 212,924 is: 435,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,998 : 212,924 = 212,924 : x
  2. Step 2: Convert to fraction form
    103,998/212,924 = 212,924/x
  3. Step 3: Cross multiply
    103,998x = 212,924 × 212,924
  4. Step 4: Simplify right side
    103,998x = 45,336,629,776
  5. Step 5: Solve for x
    x = 45,336,629,776/103,998
  6. Step 6: Final answer
    x = 435,937.52

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.