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Finding the Fourth Proportional to 80,487.65, 120,692.59 and 47,218.52

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Solution

The fourth proportional to 80,487.65, 120,692.59 and 47,218.52 is: 70,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.65 : 120,692.59 = 47,218.52 : x
  2. Step 2: Convert to fraction form
    80,487.65/120,692.59 = 47,218.52/x
  3. Step 3: Cross multiply
    80,487.65x = 120,692.59 × 47,218.52
  4. Step 4: Simplify right side
    80,487.65x = 5,698,925,474.77
  5. Step 5: Solve for x
    x = 5,698,925,474.77/80,487.65
  6. Step 6: Final answer
    x = 70,804.97

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