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Finding the Fourth Proportional to 218,622.62, 327,193.22 and 134,436.11

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Solution

The fourth proportional to 218,622.62, 327,193.22 and 134,436.11 is: 201,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,622.62 : 327,193.22 = 134,436.11 : x
  2. Step 2: Convert to fraction form
    218,622.62/327,193.22 = 134,436.11/x
  3. Step 3: Cross multiply
    218,622.62x = 327,193.22 × 134,436.11
  4. Step 4: Simplify right side
    218,622.62x = 43,986,582,415.30
  5. Step 5: Solve for x
    x = 43,986,582,415.30/218,622.62
  6. Step 6: Final answer
    x = 201,198.68

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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.