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Finding the Fourth Proportional to 67,231.51, 100,881.29 and 27,816.91

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Solution

The fourth proportional to 67,231.51, 100,881.29 and 27,816.91 is: 41,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,231.51 : 100,881.29 = 27,816.91 : x
  2. Step 2: Convert to fraction form
    67,231.51/100,881.29 = 27,816.91/x
  3. Step 3: Cross multiply
    67,231.51x = 100,881.29 × 27,816.91
  4. Step 4: Simplify right side
    67,231.51x = 2,806,205,764.61
  5. Step 5: Solve for x
    x = 2,806,205,764.61/67,231.51
  6. Step 6: Final answer
    x = 41,739.44

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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.