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Finding the Fourth Proportional to 112,937.60, 169,636.80 and 109,020.80

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Solution

The fourth proportional to 112,937.60, 169,636.80 and 109,020.80 is: 163,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,937.60 : 169,636.80 = 109,020.80 : x
  2. Step 2: Convert to fraction form
    112,937.60/169,636.80 = 109,020.80/x
  3. Step 3: Cross multiply
    112,937.60x = 169,636.80 × 109,020.80
  4. Step 4: Simplify right side
    112,937.60x = 18,493,939,645.44
  5. Step 5: Solve for x
    x = 18,493,939,645.44/112,937.60
  6. Step 6: Final answer
    x = 163,753.61

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