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Finding the Fourth Proportional to 162,608.56, 244,016.94 and 87,780.80

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Solution

The fourth proportional to 162,608.56, 244,016.94 and 87,780.80 is: 131,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,608.56 : 244,016.94 = 87,780.80 : x
  2. Step 2: Convert to fraction form
    162,608.56/244,016.94 = 87,780.80/x
  3. Step 3: Cross multiply
    162,608.56x = 244,016.94 × 87,780.80
  4. Step 4: Simplify right side
    162,608.56x = 21,420,002,816.79
  5. Step 5: Solve for x
    x = 21,420,002,816.79/162,608.56
  6. Step 6: Final answer
    x = 131,727.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.