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Finding the Third Proportional to 172,572.75 and 376,521.75

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Solution

The third proportional to 172,572.75 and 376,521.75 is: 821,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,572.75 : 376,521.75 = 376,521.75 : x
  2. Step 2: Convert to fraction form
    172,572.75/376,521.75 = 376,521.75/x
  3. Step 3: Cross multiply
    172,572.75x = 376,521.75 × 376,521.75
  4. Step 4: Simplify right side
    172,572.75x = 141,768,628,223.06
  5. Step 5: Solve for x
    x = 141,768,628,223.06/172,572.75
  6. Step 6: Final answer
    x = 821,500.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.