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Finding the Fourth Proportional to 203,704.62, 281,112.48 and 113,060.64

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Solution

The fourth proportional to 203,704.62, 281,112.48 and 113,060.64 is: 156,023.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,704.62 : 281,112.48 = 113,060.64 : x
  2. Step 2: Convert to fraction form
    203,704.62/281,112.48 = 113,060.64/x
  3. Step 3: Cross multiply
    203,704.62x = 281,112.48 × 113,060.64
  4. Step 4: Simplify right side
    203,704.62x = 31,782,756,900.79
  5. Step 5: Solve for x
    x = 31,782,756,900.79/203,704.62
  6. Step 6: Final answer
    x = 156,023.74

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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.