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Finding the Fourth Proportional to 100,948.62, 139,313.79 and 58,520.46

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Solution

The fourth proportional to 100,948.62, 139,313.79 and 58,520.46 is: 80,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,948.62 : 139,313.79 = 58,520.46 : x
  2. Step 2: Convert to fraction form
    100,948.62/139,313.79 = 58,520.46/x
  3. Step 3: Cross multiply
    100,948.62x = 139,313.79 × 58,520.46
  4. Step 4: Simplify right side
    100,948.62x = 8,152,707,075.14
  5. Step 5: Solve for x
    x = 8,152,707,075.14/100,948.62
  6. Step 6: Final answer
    x = 80,760.96

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