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Finding the Third Proportional to 201,690 and 267,543

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Solution

The third proportional to 201,690 and 267,543 is: 354,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,690 : 267,543 = 267,543 : x
  2. Step 2: Convert to fraction form
    201,690/267,543 = 267,543/x
  3. Step 3: Cross multiply
    201,690x = 267,543 × 267,543
  4. Step 4: Simplify right side
    201,690x = 71,579,256,849
  5. Step 5: Solve for x
    x = 71,579,256,849/201,690
  6. Step 6: Final answer
    x = 354,897.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.