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Finding the Fourth Proportional to 203,745.27, 281,163.30 and 111,864.11

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Solution

The fourth proportional to 203,745.27, 281,163.30 and 111,864.11 is: 154,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,745.27 : 281,163.30 = 111,864.11 : x
  2. Step 2: Convert to fraction form
    203,745.27/281,163.30 = 111,864.11/x
  3. Step 3: Cross multiply
    203,745.27x = 281,163.30 × 111,864.11
  4. Step 4: Simplify right side
    203,745.27x = 31,452,080,913.35
  5. Step 5: Solve for x
    x = 31,452,080,913.35/203,745.27
  6. Step 6: Final answer
    x = 154,369.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.