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Finding the Third Proportional to 118,129.50 and 252,651

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Solution

The third proportional to 118,129.50 and 252,651 is: 540,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,129.50 : 252,651 = 252,651 : x
  2. Step 2: Convert to fraction form
    118,129.50/252,651 = 252,651/x
  3. Step 3: Cross multiply
    118,129.50x = 252,651 × 252,651
  4. Step 4: Simplify right side
    118,129.50x = 63,832,527,801
  5. Step 5: Solve for x
    x = 63,832,527,801/118,129.50
  6. Step 6: Final answer
    x = 540,360.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.