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Finding the Fourth Proportional to 483,557.76, 725,335.68 and 128,571.72

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Solution

The fourth proportional to 483,557.76, 725,335.68 and 128,571.72 is: 192,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,557.76 : 725,335.68 = 128,571.72 : x
  2. Step 2: Convert to fraction form
    483,557.76/725,335.68 = 128,571.72/x
  3. Step 3: Cross multiply
    483,557.76x = 725,335.68 × 128,571.72
  4. Step 4: Simplify right side
    483,557.76x = 93,257,655,954.97
  5. Step 5: Solve for x
    x = 93,257,655,954.97/483,557.76
  6. Step 6: Final answer
    x = 192,857.32

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