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Finding the Fourth Proportional to 67,209.04, 100,828.56 and 20,465.52

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Solution

The fourth proportional to 67,209.04, 100,828.56 and 20,465.52 is: 30,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,209.04 : 100,828.56 = 20,465.52 : x
  2. Step 2: Convert to fraction form
    67,209.04/100,828.56 = 20,465.52/x
  3. Step 3: Cross multiply
    67,209.04x = 100,828.56 × 20,465.52
  4. Step 4: Simplify right side
    67,209.04x = 2,063,508,911.25
  5. Step 5: Solve for x
    x = 2,063,508,911.25/67,209.04
  6. Step 6: Final answer
    x = 30,702.85

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