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Finding the Third Proportional to 201,942 and 313,564

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Solution

The third proportional to 201,942 and 313,564 is: 486,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,942 : 313,564 = 313,564 : x
  2. Step 2: Convert to fraction form
    201,942/313,564 = 313,564/x
  3. Step 3: Cross multiply
    201,942x = 313,564 × 313,564
  4. Step 4: Simplify right side
    201,942x = 98,322,382,096
  5. Step 5: Solve for x
    x = 98,322,382,096/201,942
  6. Step 6: Final answer
    x = 486,884.26

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.