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Finding the Fourth Proportional to 217,366.80, 325,661.40 and 134,163.60

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Solution

The fourth proportional to 217,366.80, 325,661.40 and 134,163.60 is: 201,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,366.80 : 325,661.40 = 134,163.60 : x
  2. Step 2: Convert to fraction form
    217,366.80/325,661.40 = 134,163.60/x
  3. Step 3: Cross multiply
    217,366.80x = 325,661.40 × 134,163.60
  4. Step 4: Simplify right side
    217,366.80x = 43,691,905,805.04
  5. Step 5: Solve for x
    x = 43,691,905,805.04/217,366.80
  6. Step 6: Final answer
    x = 201,005.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.