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Finding the Fourth Proportional to 217,216.20, 325,824.30 and 67,455.30

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Solution

The fourth proportional to 217,216.20, 325,824.30 and 67,455.30 is: 101,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,216.20 : 325,824.30 = 67,455.30 : x
  2. Step 2: Convert to fraction form
    217,216.20/325,824.30 = 67,455.30/x
  3. Step 3: Cross multiply
    217,216.20x = 325,824.30 × 67,455.30
  4. Step 4: Simplify right side
    217,216.20x = 21,978,575,903.79
  5. Step 5: Solve for x
    x = 21,978,575,903.79/217,216.20
  6. Step 6: Final answer
    x = 101,182.95

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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.