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Finding the Fourth Proportional to 177,643.92, 245,147.68 and 105,072.78

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Solution

The fourth proportional to 177,643.92, 245,147.68 and 105,072.78 is: 144,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,643.92 : 245,147.68 = 105,072.78 : x
  2. Step 2: Convert to fraction form
    177,643.92/245,147.68 = 105,072.78/x
  3. Step 3: Cross multiply
    177,643.92x = 245,147.68 × 105,072.78
  4. Step 4: Simplify right side
    177,643.92x = 25,758,348,248.15
  5. Step 5: Solve for x
    x = 25,758,348,248.15/177,643.92
  6. Step 6: Final answer
    x = 144,999.89

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