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Finding the Third Proportional to 56,450 and 120,398

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Solution

The third proportional to 56,450 and 120,398 is: 256,787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,450 : 120,398 = 120,398 : x
  2. Step 2: Convert to fraction form
    56,450/120,398 = 120,398/x
  3. Step 3: Cross multiply
    56,450x = 120,398 × 120,398
  4. Step 4: Simplify right side
    56,450x = 14,495,678,404
  5. Step 5: Solve for x
    x = 14,495,678,404/56,450
  6. Step 6: Final answer
    x = 256,787.93

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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.