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Finding the Third Proportional to 74,713.50 and 163,408.50

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Solution

The third proportional to 74,713.50 and 163,408.50 is: 357,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,713.50 : 163,408.50 = 163,408.50 : x
  2. Step 2: Convert to fraction form
    74,713.50/163,408.50 = 163,408.50/x
  3. Step 3: Cross multiply
    74,713.50x = 163,408.50 × 163,408.50
  4. Step 4: Simplify right side
    74,713.50x = 26,702,337,872.25
  5. Step 5: Solve for x
    x = 26,702,337,872.25/74,713.50
  6. Step 6: Final answer
    x = 357,396.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.