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Finding the Third Proportional to 72,591.75 and 156,305.25

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Solution

The third proportional to 72,591.75 and 156,305.25 is: 336,557.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,591.75 : 156,305.25 = 156,305.25 : x
  2. Step 2: Convert to fraction form
    72,591.75/156,305.25 = 156,305.25/x
  3. Step 3: Cross multiply
    72,591.75x = 156,305.25 × 156,305.25
  4. Step 4: Simplify right side
    72,591.75x = 24,431,331,177.56
  5. Step 5: Solve for x
    x = 24,431,331,177.56/72,591.75
  6. Step 6: Final answer
    x = 336,557.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.