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Finding the Fourth Proportional to 144,890.40, 217,335.60 and 126,458.40

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Solution

The fourth proportional to 144,890.40, 217,335.60 and 126,458.40 is: 189,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.40 : 217,335.60 = 126,458.40 : x
  2. Step 2: Convert to fraction form
    144,890.40/217,335.60 = 126,458.40/x
  3. Step 3: Cross multiply
    144,890.40x = 217,335.60 × 126,458.40
  4. Step 4: Simplify right side
    144,890.40x = 27,483,912,239.04
  5. Step 5: Solve for x
    x = 27,483,912,239.04/144,890.40
  6. Step 6: Final answer
    x = 189,687.60

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