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Finding the Fourth Proportional to 80,952.82, 121,464.29 and 43,469.12

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Solution

The fourth proportional to 80,952.82, 121,464.29 and 43,469.12 is: 65,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,952.82 : 121,464.29 = 43,469.12 : x
  2. Step 2: Convert to fraction form
    80,952.82/121,464.29 = 43,469.12/x
  3. Step 3: Cross multiply
    80,952.82x = 121,464.29 × 43,469.12
  4. Step 4: Simplify right side
    80,952.82x = 5,279,946,210.06
  5. Step 5: Solve for x
    x = 5,279,946,210.06/80,952.82
  6. Step 6: Final answer
    x = 65,222.51

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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.