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Finding the Fourth Proportional to 66,540.53, 99,727.73 and 33,270.11

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Solution

The fourth proportional to 66,540.53, 99,727.73 and 33,270.11 is: 49,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,540.53 : 99,727.73 = 33,270.11 : x
  2. Step 2: Convert to fraction form
    66,540.53/99,727.73 = 33,270.11/x
  3. Step 3: Cross multiply
    66,540.53x = 99,727.73 × 33,270.11
  4. Step 4: Simplify right side
    66,540.53x = 3,317,952,380.90
  5. Step 5: Solve for x
    x = 3,317,952,380.90/66,540.53
  6. Step 6: Final answer
    x = 49,863.63

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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.