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Finding the Fourth Proportional to 91,176.96, 136,765.44 and 72,825.60

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Solution

The fourth proportional to 91,176.96, 136,765.44 and 72,825.60 is: 109,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,176.96 : 136,765.44 = 72,825.60 : x
  2. Step 2: Convert to fraction form
    91,176.96/136,765.44 = 72,825.60/x
  3. Step 3: Cross multiply
    91,176.96x = 136,765.44 × 72,825.60
  4. Step 4: Simplify right side
    91,176.96x = 9,960,025,227.26
  5. Step 5: Solve for x
    x = 9,960,025,227.26/91,176.96
  6. Step 6: Final answer
    x = 109,238.40

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