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Finding the Fourth Proportional to 145,062.88, 217,661.24 and 66,201.28

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Solution

The fourth proportional to 145,062.88, 217,661.24 and 66,201.28 is: 99,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,062.88 : 217,661.24 = 66,201.28 : x
  2. Step 2: Convert to fraction form
    145,062.88/217,661.24 = 66,201.28/x
  3. Step 3: Cross multiply
    145,062.88x = 217,661.24 × 66,201.28
  4. Step 4: Simplify right side
    145,062.88x = 14,409,452,694.39
  5. Step 5: Solve for x
    x = 14,409,452,694.39/145,062.88
  6. Step 6: Final answer
    x = 99,332.46

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