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Finding the Fourth Proportional to 54,278.88, 81,411.84 and 14,839.44

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Solution

The fourth proportional to 54,278.88, 81,411.84 and 14,839.44 is: 22,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.88 : 81,411.84 = 14,839.44 : x
  2. Step 2: Convert to fraction form
    54,278.88/81,411.84 = 14,839.44/x
  3. Step 3: Cross multiply
    54,278.88x = 81,411.84 × 14,839.44
  4. Step 4: Simplify right side
    54,278.88x = 1,208,106,114.97
  5. Step 5: Solve for x
    x = 1,208,106,114.97/54,278.88
  6. Step 6: Final answer
    x = 22,257.39

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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.