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Finding the Fourth Proportional to 123,242.25, 170,074.31 and 66,653.63

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Solution

The fourth proportional to 123,242.25, 170,074.31 and 66,653.63 is: 91,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,242.25 : 170,074.31 = 66,653.63 : x
  2. Step 2: Convert to fraction form
    123,242.25/170,074.31 = 66,653.63/x
  3. Step 3: Cross multiply
    123,242.25x = 170,074.31 × 66,653.63
  4. Step 4: Simplify right side
    123,242.25x = 11,336,068,947.61
  5. Step 5: Solve for x
    x = 11,336,068,947.61/123,242.25
  6. Step 6: Final answer
    x = 91,982.00

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