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Finding the Fourth Proportional to 266,812.80, 400,089.60 and 148,358.40

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Solution

The fourth proportional to 266,812.80, 400,089.60 and 148,358.40 is: 222,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,812.80 : 400,089.60 = 148,358.40 : x
  2. Step 2: Convert to fraction form
    266,812.80/400,089.60 = 148,358.40/x
  3. Step 3: Cross multiply
    266,812.80x = 400,089.60 × 148,358.40
  4. Step 4: Simplify right side
    266,812.80x = 59,356,652,912.64
  5. Step 5: Solve for x
    x = 59,356,652,912.64/266,812.80
  6. Step 6: Final answer
    x = 222,465.54

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