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Finding the Fourth Proportional to 111,959.78, 167,939.70 and 37,059.80

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Solution

The fourth proportional to 111,959.78, 167,939.70 and 37,059.80 is: 55,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,959.78 : 167,939.70 = 37,059.80 : x
  2. Step 2: Convert to fraction form
    111,959.78/167,939.70 = 37,059.80/x
  3. Step 3: Cross multiply
    111,959.78x = 167,939.70 × 37,059.80
  4. Step 4: Simplify right side
    111,959.78x = 6,223,811,694.06
  5. Step 5: Solve for x
    x = 6,223,811,694.06/111,959.78
  6. Step 6: Final answer
    x = 55,589.71

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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.