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Finding the Fourth Proportional to 111,309.78, 166,923.16 and 44,727.38

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Solution

The fourth proportional to 111,309.78, 166,923.16 and 44,727.38 is: 67,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,309.78 : 166,923.16 = 44,727.38 : x
  2. Step 2: Convert to fraction form
    111,309.78/166,923.16 = 44,727.38/x
  3. Step 3: Cross multiply
    111,309.78x = 166,923.16 × 44,727.38
  4. Step 4: Simplify right side
    111,309.78x = 7,466,035,608.12
  5. Step 5: Solve for x
    x = 7,466,035,608.12/111,309.78
  6. Step 6: Final answer
    x = 67,074.39

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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.