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Finding the Fourth Proportional to 118,148.11, 177,295.94 and 78,732.88

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Solution

The fourth proportional to 118,148.11, 177,295.94 and 78,732.88 is: 118,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,148.11 : 177,295.94 = 78,732.88 : x
  2. Step 2: Convert to fraction form
    118,148.11/177,295.94 = 78,732.88/x
  3. Step 3: Cross multiply
    118,148.11x = 177,295.94 × 78,732.88
  4. Step 4: Simplify right side
    118,148.11x = 13,959,019,968.51
  5. Step 5: Solve for x
    x = 13,959,019,968.51/118,148.11
  6. Step 6: Final answer
    x = 118,148.48

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