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Finding the Fourth Proportional to 410,909.56, 616,364.40 and 111,390.16

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Solution

The fourth proportional to 410,909.56, 616,364.40 and 111,390.16 is: 167,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,909.56 : 616,364.40 = 111,390.16 : x
  2. Step 2: Convert to fraction form
    410,909.56/616,364.40 = 111,390.16/x
  3. Step 3: Cross multiply
    410,909.56x = 616,364.40 × 111,390.16
  4. Step 4: Simplify right side
    410,909.56x = 68,656,929,134.30
  5. Step 5: Solve for x
    x = 68,656,929,134.30/410,909.56
  6. Step 6: Final answer
    x = 167,085.26

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