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Finding the Fourth Proportional to 165,945.94, 249,103.54 and 85,962.56

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Solution

The fourth proportional to 165,945.94, 249,103.54 and 85,962.56 is: 129,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,945.94 : 249,103.54 = 85,962.56 : x
  2. Step 2: Convert to fraction form
    165,945.94/249,103.54 = 85,962.56/x
  3. Step 3: Cross multiply
    165,945.94x = 249,103.54 × 85,962.56
  4. Step 4: Simplify right side
    165,945.94x = 21,413,576,854.42
  5. Step 5: Solve for x
    x = 21,413,576,854.42/165,945.94
  6. Step 6: Final answer
    x = 129,039.48

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