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Finding the Fourth Proportional to 116,670.80, 175,092.60 and 77,214.80

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Solution

The fourth proportional to 116,670.80, 175,092.60 and 77,214.80 is: 115,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,670.80 : 175,092.60 = 77,214.80 : x
  2. Step 2: Convert to fraction form
    116,670.80/175,092.60 = 77,214.80/x
  3. Step 3: Cross multiply
    116,670.80x = 175,092.60 × 77,214.80
  4. Step 4: Simplify right side
    116,670.80x = 13,519,740,090.48
  5. Step 5: Solve for x
    x = 13,519,740,090.48/116,670.80
  6. Step 6: Final answer
    x = 115,879.38

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