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Finding the Fourth Proportional to 82,700.40, 124,050.60 and 79,474.80

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Solution

The fourth proportional to 82,700.40, 124,050.60 and 79,474.80 is: 119,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,700.40 : 124,050.60 = 79,474.80 : x
  2. Step 2: Convert to fraction form
    82,700.40/124,050.60 = 79,474.80/x
  3. Step 3: Cross multiply
    82,700.40x = 124,050.60 × 79,474.80
  4. Step 4: Simplify right side
    82,700.40x = 9,858,896,624.88
  5. Step 5: Solve for x
    x = 9,858,896,624.88/82,700.40
  6. Step 6: Final answer
    x = 119,212.20

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