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Finding the Fourth Proportional to 54,244.80, 81,367.20 and 45,496.80

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Solution

The fourth proportional to 54,244.80, 81,367.20 and 45,496.80 is: 68,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,244.80 : 81,367.20 = 45,496.80 : x
  2. Step 2: Convert to fraction form
    54,244.80/81,367.20 = 45,496.80/x
  3. Step 3: Cross multiply
    54,244.80x = 81,367.20 × 45,496.80
  4. Step 4: Simplify right side
    54,244.80x = 3,701,947,224.96
  5. Step 5: Solve for x
    x = 3,701,947,224.96/54,244.80
  6. Step 6: Final answer
    x = 68,245.20

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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.