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Finding the Fourth Proportional to 217,163.52, 325,729.86 and 67,400.22

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Solution

The fourth proportional to 217,163.52, 325,729.86 and 67,400.22 is: 101,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,163.52 : 325,729.86 = 67,400.22 : x
  2. Step 2: Convert to fraction form
    217,163.52/325,729.86 = 67,400.22/x
  3. Step 3: Cross multiply
    217,163.52x = 325,729.86 × 67,400.22
  4. Step 4: Simplify right side
    217,163.52x = 21,954,264,224.57
  5. Step 5: Solve for x
    x = 21,954,264,224.57/217,163.52
  6. Step 6: Final answer
    x = 101,095.54

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1.5x scale

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.