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Finding the Fourth Proportional to 203,716.94, 281,124 and 113,072.67

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Solution

The fourth proportional to 203,716.94, 281,124 and 113,072.67 is: 156,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,716.94 : 281,124 = 113,072.67 : x
  2. Step 2: Convert to fraction form
    203,716.94/281,124 = 113,072.67/x
  3. Step 3: Cross multiply
    203,716.94x = 281,124 × 113,072.67
  4. Step 4: Simplify right side
    203,716.94x = 31,787,441,281.08
  5. Step 5: Solve for x
    x = 31,787,441,281.08/203,716.94
  6. Step 6: Final answer
    x = 156,037.30

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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.