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Finding the Fourth Proportional to 54,366.40, 81,452.40 and 46,007.20

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Solution

The fourth proportional to 54,366.40, 81,452.40 and 46,007.20 is: 68,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,366.40 : 81,452.40 = 46,007.20 : x
  2. Step 2: Convert to fraction form
    54,366.40/81,452.40 = 46,007.20/x
  3. Step 3: Cross multiply
    54,366.40x = 81,452.40 × 46,007.20
  4. Step 4: Simplify right side
    54,366.40x = 3,747,396,857.28
  5. Step 5: Solve for x
    x = 3,747,396,857.28/54,366.40
  6. Step 6: Final answer
    x = 68,928.55

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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.