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Finding the Fourth Proportional to 188,491.15, 260,178.43 and 120,690.81

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Solution

The fourth proportional to 188,491.15, 260,178.43 and 120,690.81 is: 166,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,491.15 : 260,178.43 = 120,690.81 : x
  2. Step 2: Convert to fraction form
    188,491.15/260,178.43 = 120,690.81/x
  3. Step 3: Cross multiply
    188,491.15x = 260,178.43 × 120,690.81
  4. Step 4: Simplify right side
    188,491.15x = 31,401,145,385.80
  5. Step 5: Solve for x
    x = 31,401,145,385.80/188,491.15
  6. Step 6: Final answer
    x = 166,592.15

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