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Finding the Third Proportional to 99,168 and 203,616

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Solution

The third proportional to 99,168 and 203,616 is: 418,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,168 : 203,616 = 203,616 : x
  2. Step 2: Convert to fraction form
    99,168/203,616 = 203,616/x
  3. Step 3: Cross multiply
    99,168x = 203,616 × 203,616
  4. Step 4: Simplify right side
    99,168x = 41,459,475,456
  5. Step 5: Solve for x
    x = 41,459,475,456/99,168
  6. Step 6: Final answer
    x = 418,073.12

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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.