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Finding the Fourth Proportional to 111,736.63, 167,604.51 and 45,175.96

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Solution

The fourth proportional to 111,736.63, 167,604.51 and 45,175.96 is: 67,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,736.63 : 167,604.51 = 45,175.96 : x
  2. Step 2: Convert to fraction form
    111,736.63/167,604.51 = 45,175.96/x
  3. Step 3: Cross multiply
    111,736.63x = 167,604.51 × 45,175.96
  4. Step 4: Simplify right side
    111,736.63x = 7,571,694,639.58
  5. Step 5: Solve for x
    x = 7,571,694,639.58/111,736.63
  6. Step 6: Final answer
    x = 67,763.76

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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.