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Finding the Fourth Proportional to 83,128.40, 124,693.08 and 27,724.24

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Solution

The fourth proportional to 83,128.40, 124,693.08 and 27,724.24 is: 41,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,128.40 : 124,693.08 = 27,724.24 : x
  2. Step 2: Convert to fraction form
    83,128.40/124,693.08 = 27,724.24/x
  3. Step 3: Cross multiply
    83,128.40x = 124,693.08 × 27,724.24
  4. Step 4: Simplify right side
    83,128.40x = 3,457,020,876.26
  5. Step 5: Solve for x
    x = 3,457,020,876.26/83,128.40
  6. Step 6: Final answer
    x = 41,586.52

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