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Finding the Fourth Proportional to 81,921.48, 113,029.02 and 46,109.40

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Solution

The fourth proportional to 81,921.48, 113,029.02 and 46,109.40 is: 63,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,921.48 : 113,029.02 = 46,109.40 : x
  2. Step 2: Convert to fraction form
    81,921.48/113,029.02 = 46,109.40/x
  3. Step 3: Cross multiply
    81,921.48x = 113,029.02 × 46,109.40
  4. Step 4: Simplify right side
    81,921.48x = 5,211,700,294.79
  5. Step 5: Solve for x
    x = 5,211,700,294.79/81,921.48
  6. Step 6: Final answer
    x = 63,618.24

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