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Finding the Fourth Proportional to 54,058.04, 80,974.06 and 43,470.80

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Solution

The fourth proportional to 54,058.04, 80,974.06 and 43,470.80 is: 65,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,058.04 : 80,974.06 = 43,470.80 : x
  2. Step 2: Convert to fraction form
    54,058.04/80,974.06 = 43,470.80/x
  3. Step 3: Cross multiply
    54,058.04x = 80,974.06 × 43,470.80
  4. Step 4: Simplify right side
    54,058.04x = 3,520,007,167.45
  5. Step 5: Solve for x
    x = 3,520,007,167.45/54,058.04
  6. Step 6: Final answer
    x = 65,115.33

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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.