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Finding the Third Proportional to 108,658.13 and 168,243.75

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Solution

The third proportional to 108,658.13 and 168,243.75 is: 260,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658.13 : 168,243.75 = 168,243.75 : x
  2. Step 2: Convert to fraction form
    108,658.13/168,243.75 = 168,243.75/x
  3. Step 3: Cross multiply
    108,658.13x = 168,243.75 × 168,243.75
  4. Step 4: Simplify right side
    108,658.13x = 28,305,959,414.06
  5. Step 5: Solve for x
    x = 28,305,959,414.06/108,658.13
  6. Step 6: Final answer
    x = 260,504.77

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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.