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Finding the Fourth Proportional to 117,620.80, 176,236.80 and 100,902.40

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Solution

The fourth proportional to 117,620.80, 176,236.80 and 100,902.40 is: 151,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.80 : 176,236.80 = 100,902.40 : x
  2. Step 2: Convert to fraction form
    117,620.80/176,236.80 = 100,902.40/x
  3. Step 3: Cross multiply
    117,620.80x = 176,236.80 × 100,902.40
  4. Step 4: Simplify right side
    117,620.80x = 17,782,716,088.32
  5. Step 5: Solve for x
    x = 17,782,716,088.32/117,620.80
  6. Step 6: Final answer
    x = 151,186.83

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