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Finding the Third Proportional to 99,844.88 and 217,185.75

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Solution

The third proportional to 99,844.88 and 217,185.75 is: 472,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844.88 : 217,185.75 = 217,185.75 : x
  2. Step 2: Convert to fraction form
    99,844.88/217,185.75 = 217,185.75/x
  3. Step 3: Cross multiply
    99,844.88x = 217,185.75 × 217,185.75
  4. Step 4: Simplify right side
    99,844.88x = 47,169,650,003.06
  5. Step 5: Solve for x
    x = 47,169,650,003.06/99,844.88
  6. Step 6: Final answer
    x = 472,429.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.