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Finding the Fourth Proportional to 111,699.05, 167,631.63 and 45,139.76

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Solution

The fourth proportional to 111,699.05, 167,631.63 and 45,139.76 is: 67,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,699.05 : 167,631.63 = 45,139.76 : x
  2. Step 2: Convert to fraction form
    111,699.05/167,631.63 = 45,139.76/x
  3. Step 3: Cross multiply
    111,699.05x = 167,631.63 × 45,139.76
  4. Step 4: Simplify right side
    111,699.05x = 7,566,850,708.45
  5. Step 5: Solve for x
    x = 7,566,850,708.45/111,699.05
  6. Step 6: Final answer
    x = 67,743.20

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