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Finding the Fourth Proportional to 204,163.80, 281,745.60 and 113,516.88

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Solution

The fourth proportional to 204,163.80, 281,745.60 and 113,516.88 is: 156,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,163.80 : 281,745.60 = 113,516.88 : x
  2. Step 2: Convert to fraction form
    204,163.80/281,745.60 = 113,516.88/x
  3. Step 3: Cross multiply
    204,163.80x = 281,745.60 × 113,516.88
  4. Step 4: Simplify right side
    204,163.80x = 31,982,881,465.73
  5. Step 5: Solve for x
    x = 31,982,881,465.73/204,163.80
  6. Step 6: Final answer
    x = 156,653.05

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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.