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Finding the Fourth Proportional to 54,505.28, 75,161.28 and 45,549.44

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Solution

The fourth proportional to 54,505.28, 75,161.28 and 45,549.44 is: 62,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,505.28 : 75,161.28 = 45,549.44 : x
  2. Step 2: Convert to fraction form
    54,505.28/75,161.28 = 45,549.44/x
  3. Step 3: Cross multiply
    54,505.28x = 75,161.28 × 45,549.44
  4. Step 4: Simplify right side
    54,505.28x = 3,423,554,213.68
  5. Step 5: Solve for x
    x = 3,423,554,213.68/54,505.28
  6. Step 6: Final answer
    x = 62,811.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.