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Finding the Third Proportional to 208,134 and 451,261

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Solution

The third proportional to 208,134 and 451,261 is: 978,391.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,134 : 451,261 = 451,261 : x
  2. Step 2: Convert to fraction form
    208,134/451,261 = 451,261/x
  3. Step 3: Cross multiply
    208,134x = 451,261 × 451,261
  4. Step 4: Simplify right side
    208,134x = 203,636,490,121
  5. Step 5: Solve for x
    x = 203,636,490,121/208,134
  6. Step 6: Final answer
    x = 978,391.28

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.