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Finding the Fourth Proportional to 78,931.52, 118,441.02 and 32,180.78

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Solution

The fourth proportional to 78,931.52, 118,441.02 and 32,180.78 is: 48,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,931.52 : 118,441.02 = 32,180.78 : x
  2. Step 2: Convert to fraction form
    78,931.52/118,441.02 = 32,180.78/x
  3. Step 3: Cross multiply
    78,931.52x = 118,441.02 × 32,180.78
  4. Step 4: Simplify right side
    78,931.52x = 3,811,524,407.60
  5. Step 5: Solve for x
    x = 3,811,524,407.60/78,931.52
  6. Step 6: Final answer
    x = 48,289.00

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