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Finding the Third Proportional to 156,927 and 201,491

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Solution

The third proportional to 156,927 and 201,491 is: 258,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,927 : 201,491 = 201,491 : x
  2. Step 2: Convert to fraction form
    156,927/201,491 = 201,491/x
  3. Step 3: Cross multiply
    156,927x = 201,491 × 201,491
  4. Step 4: Simplify right side
    156,927x = 40,598,623,081
  5. Step 5: Solve for x
    x = 40,598,623,081/156,927
  6. Step 6: Final answer
    x = 258,710.25

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.