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Finding the Fourth Proportional to 111,797.76, 167,696.76 and 28,691.76

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Solution

The fourth proportional to 111,797.76, 167,696.76 and 28,691.76 is: 43,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,797.76 : 167,696.76 = 28,691.76 : x
  2. Step 2: Convert to fraction form
    111,797.76/167,696.76 = 28,691.76/x
  3. Step 3: Cross multiply
    111,797.76x = 167,696.76 × 28,691.76
  4. Step 4: Simplify right side
    111,797.76x = 4,811,515,190.70
  5. Step 5: Solve for x
    x = 4,811,515,190.70/111,797.76
  6. Step 6: Final answer
    x = 43,037.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.