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Finding the Third Proportional to 124,217 and 268,276

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Solution

The third proportional to 124,217 and 268,276 is: 579,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,217 : 268,276 = 268,276 : x
  2. Step 2: Convert to fraction form
    124,217/268,276 = 268,276/x
  3. Step 3: Cross multiply
    124,217x = 268,276 × 268,276
  4. Step 4: Simplify right side
    124,217x = 71,972,012,176
  5. Step 5: Solve for x
    x = 71,972,012,176/124,217
  6. Step 6: Final answer
    x = 579,405.49

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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.