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Finding the Fourth Proportional to 146,163.60, 218,856.60 and 93,286.80

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Solution

The fourth proportional to 146,163.60, 218,856.60 and 93,286.80 is: 139,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,163.60 : 218,856.60 = 93,286.80 : x
  2. Step 2: Convert to fraction form
    146,163.60/218,856.60 = 93,286.80/x
  3. Step 3: Cross multiply
    146,163.60x = 218,856.60 × 93,286.80
  4. Step 4: Simplify right side
    146,163.60x = 20,416,431,872.88
  5. Step 5: Solve for x
    x = 20,416,431,872.88/146,163.60
  6. Step 6: Final answer
    x = 139,682.05

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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.