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Finding the Fourth Proportional to 54,912.40, 82,465.80 and 42,462.70

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Solution

The fourth proportional to 54,912.40, 82,465.80 and 42,462.70 is: 63,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.40 : 82,465.80 = 42,462.70 : x
  2. Step 2: Convert to fraction form
    54,912.40/82,465.80 = 42,462.70/x
  3. Step 3: Cross multiply
    54,912.40x = 82,465.80 × 42,462.70
  4. Step 4: Simplify right side
    54,912.40x = 3,501,720,525.66
  5. Step 5: Solve for x
    x = 3,501,720,525.66/54,912.40
  6. Step 6: Final answer
    x = 63,769.21

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