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Finding the Third Proportional to 72,540 and 106,326

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Solution

The third proportional to 72,540 and 106,326 is: 155,848.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,540 : 106,326 = 106,326 : x
  2. Step 2: Convert to fraction form
    72,540/106,326 = 106,326/x
  3. Step 3: Cross multiply
    72,540x = 106,326 × 106,326
  4. Step 4: Simplify right side
    72,540x = 11,305,218,276
  5. Step 5: Solve for x
    x = 11,305,218,276/72,540
  6. Step 6: Final answer
    x = 155,848.06

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.