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Finding the Fourth Proportional to 256,554.20, 384,873.42 and 79,061.24

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Solution

The fourth proportional to 256,554.20, 384,873.42 and 79,061.24 is: 118,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,554.20 : 384,873.42 = 79,061.24 : x
  2. Step 2: Convert to fraction form
    256,554.20/384,873.42 = 79,061.24/x
  3. Step 3: Cross multiply
    256,554.20x = 384,873.42 × 79,061.24
  4. Step 4: Simplify right side
    256,554.20x = 30,428,569,828.24
  5. Step 5: Solve for x
    x = 30,428,569,828.24/256,554.20
  6. Step 6: Final answer
    x = 118,604.84

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