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Finding the Fourth Proportional to 118,212.80, 177,319.20 and 73,889.60

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Solution

The fourth proportional to 118,212.80, 177,319.20 and 73,889.60 is: 110,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,212.80 : 177,319.20 = 73,889.60 : x
  2. Step 2: Convert to fraction form
    118,212.80/177,319.20 = 73,889.60/x
  3. Step 3: Cross multiply
    118,212.80x = 177,319.20 × 73,889.60
  4. Step 4: Simplify right side
    118,212.80x = 13,102,044,760.32
  5. Step 5: Solve for x
    x = 13,102,044,760.32/118,212.80
  6. Step 6: Final answer
    x = 110,834.40

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