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Finding the Third Proportional to 156,966 and 201,545

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Solution

The third proportional to 156,966 and 201,545 is: 258,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966 : 201,545 = 201,545 : x
  2. Step 2: Convert to fraction form
    156,966/201,545 = 201,545/x
  3. Step 3: Cross multiply
    156,966x = 201,545 × 201,545
  4. Step 4: Simplify right side
    156,966x = 40,620,387,025
  5. Step 5: Solve for x
    x = 40,620,387,025/156,966
  6. Step 6: Final answer
    x = 258,784.62

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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.