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Finding the Third Proportional to 54,815 and 118,330

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Solution

The third proportional to 54,815 and 118,330 is: 255,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815 : 118,330 = 118,330 : x
  2. Step 2: Convert to fraction form
    54,815/118,330 = 118,330/x
  3. Step 3: Cross multiply
    54,815x = 118,330 × 118,330
  4. Step 4: Simplify right side
    54,815x = 14,001,988,900
  5. Step 5: Solve for x
    x = 14,001,988,900/54,815
  6. Step 6: Final answer
    x = 255,440.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.