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Finding the Third Proportional to 65,421 and 141,204

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Solution

The third proportional to 65,421 and 141,204 is: 304,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421 : 141,204 = 141,204 : x
  2. Step 2: Convert to fraction form
    65,421/141,204 = 141,204/x
  3. Step 3: Cross multiply
    65,421x = 141,204 × 141,204
  4. Step 4: Simplify right side
    65,421x = 19,938,569,616
  5. Step 5: Solve for x
    x = 19,938,569,616/65,421
  6. Step 6: Final answer
    x = 304,773.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.