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Finding the Fourth Proportional to 203,954.76, 281,453.67 and 113,306.85

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Solution

The fourth proportional to 203,954.76, 281,453.67 and 113,306.85 is: 156,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,954.76 : 281,453.67 = 113,306.85 : x
  2. Step 2: Convert to fraction form
    203,954.76/281,453.67 = 113,306.85/x
  3. Step 3: Cross multiply
    203,954.76x = 281,453.67 × 113,306.85
  4. Step 4: Simplify right side
    203,954.76x = 31,890,628,768.64
  5. Step 5: Solve for x
    x = 31,890,628,768.64/203,954.76
  6. Step 6: Final answer
    x = 156,361.29

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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.