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Finding the Fourth Proportional to 74,112.64, 111,151.04 and 21,507.84

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Solution

The fourth proportional to 74,112.64, 111,151.04 and 21,507.84 is: 32,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.64 : 111,151.04 = 21,507.84 : x
  2. Step 2: Convert to fraction form
    74,112.64/111,151.04 = 21,507.84/x
  3. Step 3: Cross multiply
    74,112.64x = 111,151.04 × 21,507.84
  4. Step 4: Simplify right side
    74,112.64x = 2,390,618,784.15
  5. Step 5: Solve for x
    x = 2,390,618,784.15/74,112.64
  6. Step 6: Final answer
    x = 32,256.56

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