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Finding the Fourth Proportional to 203,704.72, 281,125.65 and 113,060.69

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Solution

The fourth proportional to 203,704.72, 281,125.65 and 113,060.69 is: 156,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,704.72 : 281,125.65 = 113,060.69 : x
  2. Step 2: Convert to fraction form
    203,704.72/281,125.65 = 113,060.69/x
  3. Step 3: Cross multiply
    203,704.72x = 281,125.65 × 113,060.69
  4. Step 4: Simplify right side
    203,704.72x = 31,784,259,965.70
  5. Step 5: Solve for x
    x = 31,784,259,965.70/203,704.72
  6. Step 6: Final answer
    x = 156,031.04

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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.