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Finding the Fourth Proportional to 132,428.40, 198,719.40 and 49,330.80

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Solution

The fourth proportional to 132,428.40, 198,719.40 and 49,330.80 is: 74,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,428.40 : 198,719.40 = 49,330.80 : x
  2. Step 2: Convert to fraction form
    132,428.40/198,719.40 = 49,330.80/x
  3. Step 3: Cross multiply
    132,428.40x = 198,719.40 × 49,330.80
  4. Step 4: Simplify right side
    132,428.40x = 9,802,986,977.52
  5. Step 5: Solve for x
    x = 9,802,986,977.52/132,428.40
  6. Step 6: Final answer
    x = 74,024.81

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