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Finding the Fourth Proportional to 83,507.52, 115,240.32 and 45,782.40

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Solution

The fourth proportional to 83,507.52, 115,240.32 and 45,782.40 is: 63,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,507.52 : 115,240.32 = 45,782.40 : x
  2. Step 2: Convert to fraction form
    83,507.52/115,240.32 = 45,782.40/x
  3. Step 3: Cross multiply
    83,507.52x = 115,240.32 × 45,782.40
  4. Step 4: Simplify right side
    83,507.52x = 5,275,978,426.37
  5. Step 5: Solve for x
    x = 5,275,978,426.37/83,507.52
  6. Step 6: Final answer
    x = 63,179.68

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