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Finding the Fourth Proportional to 111,162.75, 166,790.34 and 44,650.05

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Solution

The fourth proportional to 111,162.75, 166,790.34 and 44,650.05 is: 66,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,162.75 : 166,790.34 = 44,650.05 : x
  2. Step 2: Convert to fraction form
    111,162.75/166,790.34 = 44,650.05/x
  3. Step 3: Cross multiply
    111,162.75x = 166,790.34 × 44,650.05
  4. Step 4: Simplify right side
    111,162.75x = 7,447,197,020.52
  5. Step 5: Solve for x
    x = 7,447,197,020.52/111,162.75
  6. Step 6: Final answer
    x = 66,993.64

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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.