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Finding the Third Proportional to 54,990 and 118,494

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Solution

The third proportional to 54,990 and 118,494 is: 255,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,990 : 118,494 = 118,494 : x
  2. Step 2: Convert to fraction form
    54,990/118,494 = 118,494/x
  3. Step 3: Cross multiply
    54,990x = 118,494 × 118,494
  4. Step 4: Simplify right side
    54,990x = 14,040,828,036
  5. Step 5: Solve for x
    x = 14,040,828,036/54,990
  6. Step 6: Final answer
    x = 255,334.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.