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Finding the Third Proportional to 133,922 and 196,509

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Solution

The third proportional to 133,922 and 196,509 is: 288,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,922 : 196,509 = 196,509 : x
  2. Step 2: Convert to fraction form
    133,922/196,509 = 196,509/x
  3. Step 3: Cross multiply
    133,922x = 196,509 × 196,509
  4. Step 4: Simplify right side
    133,922x = 38,615,787,081
  5. Step 5: Solve for x
    x = 38,615,787,081/133,922
  6. Step 6: Final answer
    x = 288,345.36

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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.