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Finding the Fourth Proportional to 82,791.56, 124,199.76 and 38,422.86

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Solution

The fourth proportional to 82,791.56, 124,199.76 and 38,422.86 is: 57,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,791.56 : 124,199.76 = 38,422.86 : x
  2. Step 2: Convert to fraction form
    82,791.56/124,199.76 = 38,422.86/x
  3. Step 3: Cross multiply
    82,791.56x = 124,199.76 × 38,422.86
  4. Step 4: Simplify right side
    82,791.56x = 4,772,109,990.51
  5. Step 5: Solve for x
    x = 4,772,109,990.51/82,791.56
  6. Step 6: Final answer
    x = 57,640.05

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