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Finding the Fourth Proportional to 67,390.62, 101,105.37 and 27,940.38

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Solution

The fourth proportional to 67,390.62, 101,105.37 and 27,940.38 is: 41,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,390.62 : 101,105.37 = 27,940.38 : x
  2. Step 2: Convert to fraction form
    67,390.62/101,105.37 = 27,940.38/x
  3. Step 3: Cross multiply
    67,390.62x = 101,105.37 × 27,940.38
  4. Step 4: Simplify right side
    67,390.62x = 2,824,922,457.84
  5. Step 5: Solve for x
    x = 2,824,922,457.84/67,390.62
  6. Step 6: Final answer
    x = 41,918.63

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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.