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Finding the Third Proportional to 117,306 and 255,788

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Solution

The third proportional to 117,306 and 255,788 is: 557,750.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,306 : 255,788 = 255,788 : x
  2. Step 2: Convert to fraction form
    117,306/255,788 = 255,788/x
  3. Step 3: Cross multiply
    117,306x = 255,788 × 255,788
  4. Step 4: Simplify right side
    117,306x = 65,427,500,944
  5. Step 5: Solve for x
    x = 65,427,500,944/117,306
  6. Step 6: Final answer
    x = 557,750.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.