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Finding the Third Proportional to 56,173.50 and 120,609

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Solution

The third proportional to 56,173.50 and 120,609 is: 258,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,173.50 : 120,609 = 120,609 : x
  2. Step 2: Convert to fraction form
    56,173.50/120,609 = 120,609/x
  3. Step 3: Cross multiply
    56,173.50x = 120,609 × 120,609
  4. Step 4: Simplify right side
    56,173.50x = 14,546,530,881
  5. Step 5: Solve for x
    x = 14,546,530,881/56,173.50
  6. Step 6: Final answer
    x = 258,957.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.