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Finding the Fourth Proportional to 235,712.94, 325,277.64 and 128,280.69

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Solution

The fourth proportional to 235,712.94, 325,277.64 and 128,280.69 is: 177,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,712.94 : 325,277.64 = 128,280.69 : x
  2. Step 2: Convert to fraction form
    235,712.94/325,277.64 = 128,280.69/x
  3. Step 3: Cross multiply
    235,712.94x = 325,277.64 × 128,280.69
  4. Step 4: Simplify right side
    235,712.94x = 41,726,840,100.77
  5. Step 5: Solve for x
    x = 41,726,840,100.77/235,712.94
  6. Step 6: Final answer
    x = 177,023.97

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