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Finding the Fourth Proportional to 75,571.71, 104,287.28 and 43,739.97

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Solution

The fourth proportional to 75,571.71, 104,287.28 and 43,739.97 is: 60,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,571.71 : 104,287.28 = 43,739.97 : x
  2. Step 2: Convert to fraction form
    75,571.71/104,287.28 = 43,739.97/x
  3. Step 3: Cross multiply
    75,571.71x = 104,287.28 × 43,739.97
  4. Step 4: Simplify right side
    75,571.71x = 4,561,522,279.88
  5. Step 5: Solve for x
    x = 4,561,522,279.88/75,571.71
  6. Step 6: Final answer
    x = 60,360.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.