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Finding the Fourth Proportional to 74,181.69, 111,287.12 and 27,434.97

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Solution

The fourth proportional to 74,181.69, 111,287.12 and 27,434.97 is: 41,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,181.69 : 111,287.12 = 27,434.97 : x
  2. Step 2: Convert to fraction form
    74,181.69/111,287.12 = 27,434.97/x
  3. Step 3: Cross multiply
    74,181.69x = 111,287.12 × 27,434.97
  4. Step 4: Simplify right side
    74,181.69x = 3,053,158,661.41
  5. Step 5: Solve for x
    x = 3,053,158,661.41/74,181.69
  6. Step 6: Final answer
    x = 41,157.85

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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.