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Finding the Fourth Proportional to 135,993.93, 203,990.64 and 36,154.11

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Solution

The fourth proportional to 135,993.93, 203,990.64 and 36,154.11 is: 54,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,993.93 : 203,990.64 = 36,154.11 : x
  2. Step 2: Convert to fraction form
    135,993.93/203,990.64 = 36,154.11/x
  3. Step 3: Cross multiply
    135,993.93x = 203,990.64 × 36,154.11
  4. Step 4: Simplify right side
    135,993.93x = 7,375,100,037.53
  5. Step 5: Solve for x
    x = 7,375,100,037.53/135,993.93
  6. Step 6: Final answer
    x = 54,231.10

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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.