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Finding the Third Proportional to 201,568.50 and 291,375

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Solution

The third proportional to 201,568.50 and 291,375 is: 421,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,568.50 : 291,375 = 291,375 : x
  2. Step 2: Convert to fraction form
    201,568.50/291,375 = 291,375/x
  3. Step 3: Cross multiply
    201,568.50x = 291,375 × 291,375
  4. Step 4: Simplify right side
    201,568.50x = 84,899,390,625
  5. Step 5: Solve for x
    x = 84,899,390,625/201,568.50
  6. Step 6: Final answer
    x = 421,193.74

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.