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Finding the Third Proportional to 85,223 and 187,402

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Solution

The third proportional to 85,223 and 187,402 is: 412,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,223 : 187,402 = 187,402 : x
  2. Step 2: Convert to fraction form
    85,223/187,402 = 187,402/x
  3. Step 3: Cross multiply
    85,223x = 187,402 × 187,402
  4. Step 4: Simplify right side
    85,223x = 35,119,509,604
  5. Step 5: Solve for x
    x = 35,119,509,604/85,223
  6. Step 6: Final answer
    x = 412,089.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.