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Finding the Third Proportional to 91,464 and 199,686

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Solution

The third proportional to 91,464 and 199,686 is: 435,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,464 : 199,686 = 199,686 : x
  2. Step 2: Convert to fraction form
    91,464/199,686 = 199,686/x
  3. Step 3: Cross multiply
    91,464x = 199,686 × 199,686
  4. Step 4: Simplify right side
    91,464x = 39,874,498,596
  5. Step 5: Solve for x
    x = 39,874,498,596/91,464
  6. Step 6: Final answer
    x = 435,958.39

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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.