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Finding the Third Proportional to 192,972 and 415,320

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Solution

The third proportional to 192,972 and 415,320 is: 893,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,972 : 415,320 = 415,320 : x
  2. Step 2: Convert to fraction form
    192,972/415,320 = 415,320/x
  3. Step 3: Cross multiply
    192,972x = 415,320 × 415,320
  4. Step 4: Simplify right side
    192,972x = 172,490,702,400
  5. Step 5: Solve for x
    x = 172,490,702,400/192,972
  6. Step 6: Final answer
    x = 893,863.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.