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Finding the Third Proportional to 192,508 and 287,166

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Solution

The third proportional to 192,508 and 287,166 is: 428,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,508 : 287,166 = 287,166 : x
  2. Step 2: Convert to fraction form
    192,508/287,166 = 287,166/x
  3. Step 3: Cross multiply
    192,508x = 287,166 × 287,166
  4. Step 4: Simplify right side
    192,508x = 82,464,311,556
  5. Step 5: Solve for x
    x = 82,464,311,556/192,508
  6. Step 6: Final answer
    x = 428,368.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.