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Finding the Fourth Proportional to 223,611.48, 335,183.88 and 90,583.56

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Solution

The fourth proportional to 223,611.48, 335,183.88 and 90,583.56 is: 135,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,611.48 : 335,183.88 = 90,583.56 : x
  2. Step 2: Convert to fraction form
    223,611.48/335,183.88 = 90,583.56/x
  3. Step 3: Cross multiply
    223,611.48x = 335,183.88 × 90,583.56
  4. Step 4: Simplify right side
    223,611.48x = 30,362,149,105.01
  5. Step 5: Solve for x
    x = 30,362,149,105.01/223,611.48
  6. Step 6: Final answer
    x = 135,780.82

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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.