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Finding the Fourth Proportional to 100,532.64, 138,695.28 and 58,083.36

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Solution

The fourth proportional to 100,532.64, 138,695.28 and 58,083.36 is: 80,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,532.64 : 138,695.28 = 58,083.36 : x
  2. Step 2: Convert to fraction form
    100,532.64/138,695.28 = 58,083.36/x
  3. Step 3: Cross multiply
    100,532.64x = 138,695.28 × 58,083.36
  4. Step 4: Simplify right side
    100,532.64x = 8,055,887,878.54
  5. Step 5: Solve for x
    x = 8,055,887,878.54/100,532.64
  6. Step 6: Final answer
    x = 80,132.06

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