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Finding the Fourth Proportional to 54,049.75, 80,719.76 and 46,067.20

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Solution

The fourth proportional to 54,049.75, 80,719.76 and 46,067.20 is: 68,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,049.75 : 80,719.76 = 46,067.20 : x
  2. Step 2: Convert to fraction form
    54,049.75/80,719.76 = 46,067.20/x
  3. Step 3: Cross multiply
    54,049.75x = 80,719.76 × 46,067.20
  4. Step 4: Simplify right side
    54,049.75x = 3,718,533,241.24
  5. Step 5: Solve for x
    x = 3,718,533,241.24/54,049.75
  6. Step 6: Final answer
    x = 68,798.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.