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Finding the Fourth Proportional to 111,785.45, 167,694.84 and 36,913.50

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Solution

The fourth proportional to 111,785.45, 167,694.84 and 36,913.50 is: 55,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,785.45 : 167,694.84 = 36,913.50 : x
  2. Step 2: Convert to fraction form
    111,785.45/167,694.84 = 36,913.50/x
  3. Step 3: Cross multiply
    111,785.45x = 167,694.84 × 36,913.50
  4. Step 4: Simplify right side
    111,785.45x = 6,190,203,476.34
  5. Step 5: Solve for x
    x = 6,190,203,476.34/111,785.45
  6. Step 6: Final answer
    x = 55,375.76

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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.