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Finding the Fourth Proportional to 109,864.90, 164,538.15 and 74,613.70

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Solution

The fourth proportional to 109,864.90, 164,538.15 and 74,613.70 is: 111,744.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,864.90 : 164,538.15 = 74,613.70 : x
  2. Step 2: Convert to fraction form
    109,864.90/164,538.15 = 74,613.70/x
  3. Step 3: Cross multiply
    109,864.90x = 164,538.15 × 74,613.70
  4. Step 4: Simplify right side
    109,864.90x = 12,276,800,162.66
  5. Step 5: Solve for x
    x = 12,276,800,162.66/109,864.90
  6. Step 6: Final answer
    x = 111,744.52

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