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Finding the Third Proportional to 73,145 and 99,349

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Solution

The third proportional to 73,145 and 99,349 is: 134,940.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145 : 99,349 = 99,349 : x
  2. Step 2: Convert to fraction form
    73,145/99,349 = 99,349/x
  3. Step 3: Cross multiply
    73,145x = 99,349 × 99,349
  4. Step 4: Simplify right side
    73,145x = 9,870,223,801
  5. Step 5: Solve for x
    x = 9,870,223,801/73,145
  6. Step 6: Final answer
    x = 134,940.51

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.