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Finding the Fourth Proportional to 74,381.82, 111,573.63 and 21,792.36

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Solution

The fourth proportional to 74,381.82, 111,573.63 and 21,792.36 is: 32,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,381.82 : 111,573.63 = 21,792.36 : x
  2. Step 2: Convert to fraction form
    74,381.82/111,573.63 = 21,792.36/x
  3. Step 3: Cross multiply
    74,381.82x = 111,573.63 × 21,792.36
  4. Step 4: Simplify right side
    74,381.82x = 2,431,452,711.47
  5. Step 5: Solve for x
    x = 2,431,452,711.47/74,381.82
  6. Step 6: Final answer
    x = 32,688.80

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