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Finding the Third Proportional to 67,561.69 and 156,387.19

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Solution

The third proportional to 67,561.69 and 156,387.19 is: 361,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,561.69 : 156,387.19 = 156,387.19 : x
  2. Step 2: Convert to fraction form
    67,561.69/156,387.19 = 156,387.19/x
  3. Step 3: Cross multiply
    67,561.69x = 156,387.19 × 156,387.19
  4. Step 4: Simplify right side
    67,561.69x = 24,456,952,414.16
  5. Step 5: Solve for x
    x = 24,456,952,414.16/67,561.69
  6. Step 6: Final answer
    x = 361,994.40

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.