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Finding the Fourth Proportional to 119,891.40, 165,454.14 and 65,446.80

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Solution

The fourth proportional to 119,891.40, 165,454.14 and 65,446.80 is: 90,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,891.40 : 165,454.14 = 65,446.80 : x
  2. Step 2: Convert to fraction form
    119,891.40/165,454.14 = 65,446.80/x
  3. Step 3: Cross multiply
    119,891.40x = 165,454.14 × 65,446.80
  4. Step 4: Simplify right side
    119,891.40x = 10,828,444,009.75
  5. Step 5: Solve for x
    x = 10,828,444,009.75/119,891.40
  6. Step 6: Final answer
    x = 90,318.77

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