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Finding the Fourth Proportional to 132,312.40, 198,468.60 and 79,824.40

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Solution

The fourth proportional to 132,312.40, 198,468.60 and 79,824.40 is: 119,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,312.40 : 198,468.60 = 79,824.40 : x
  2. Step 2: Convert to fraction form
    132,312.40/198,468.60 = 79,824.40/x
  3. Step 3: Cross multiply
    132,312.40x = 198,468.60 × 79,824.40
  4. Step 4: Simplify right side
    132,312.40x = 15,842,636,913.84
  5. Step 5: Solve for x
    x = 15,842,636,913.84/132,312.40
  6. Step 6: Final answer
    x = 119,736.60

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