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Finding the Fourth Proportional to 52,065.87, 78,129.90 and 47,830.92

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Solution

The fourth proportional to 52,065.87, 78,129.90 and 47,830.92 is: 71,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,065.87 : 78,129.90 = 47,830.92 : x
  2. Step 2: Convert to fraction form
    52,065.87/78,129.90 = 47,830.92/x
  3. Step 3: Cross multiply
    52,065.87x = 78,129.90 × 47,830.92
  4. Step 4: Simplify right side
    52,065.87x = 3,737,024,996.51
  5. Step 5: Solve for x
    x = 3,737,024,996.51/52,065.87
  6. Step 6: Final answer
    x = 71,774.95

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