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Finding the Third Proportional to 73,003 and 155,415

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Solution

The third proportional to 73,003 and 155,415 is: 330,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,003 : 155,415 = 155,415 : x
  2. Step 2: Convert to fraction form
    73,003/155,415 = 155,415/x
  3. Step 3: Cross multiply
    73,003x = 155,415 × 155,415
  4. Step 4: Simplify right side
    73,003x = 24,153,822,225
  5. Step 5: Solve for x
    x = 24,153,822,225/73,003
  6. Step 6: Final answer
    x = 330,860.68

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.