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Finding the Third Proportional to 72,908 and 159,532

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Solution

The third proportional to 72,908 and 159,532 is: 349,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,908 : 159,532 = 159,532 : x
  2. Step 2: Convert to fraction form
    72,908/159,532 = 159,532/x
  3. Step 3: Cross multiply
    72,908x = 159,532 × 159,532
  4. Step 4: Simplify right side
    72,908x = 25,450,459,024
  5. Step 5: Solve for x
    x = 25,450,459,024/72,908
  6. Step 6: Final answer
    x = 349,076.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.