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Finding the Third Proportional to 178,490.75 and 375,388.75

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Solution

The third proportional to 178,490.75 and 375,388.75 is: 789,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,490.75 : 375,388.75 = 375,388.75 : x
  2. Step 2: Convert to fraction form
    178,490.75/375,388.75 = 375,388.75/x
  3. Step 3: Cross multiply
    178,490.75x = 375,388.75 × 375,388.75
  4. Step 4: Simplify right side
    178,490.75x = 140,916,713,626.56
  5. Step 5: Solve for x
    x = 140,916,713,626.56/178,490.75
  6. Step 6: Final answer
    x = 789,490.29

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.