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Finding the Third Proportional to 122,441.50 and 189,203.50

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Solution

The third proportional to 122,441.50 and 189,203.50 is: 292,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,441.50 : 189,203.50 = 189,203.50 : x
  2. Step 2: Convert to fraction form
    122,441.50/189,203.50 = 189,203.50/x
  3. Step 3: Cross multiply
    122,441.50x = 189,203.50 × 189,203.50
  4. Step 4: Simplify right side
    122,441.50x = 35,797,964,412.25
  5. Step 5: Solve for x
    x = 35,797,964,412.25/122,441.50
  6. Step 6: Final answer
    x = 292,367.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.