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Finding the Fourth Proportional to 99,590.80, 149,386.20 and 52,819.60

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Solution

The fourth proportional to 99,590.80, 149,386.20 and 52,819.60 is: 79,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,590.80 : 149,386.20 = 52,819.60 : x
  2. Step 2: Convert to fraction form
    99,590.80/149,386.20 = 52,819.60/x
  3. Step 3: Cross multiply
    99,590.80x = 149,386.20 × 52,819.60
  4. Step 4: Simplify right side
    99,590.80x = 7,890,519,329.52
  5. Step 5: Solve for x
    x = 7,890,519,329.52/99,590.80
  6. Step 6: Final answer
    x = 79,229.40

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