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Finding the Third Proportional to 103,920.75 and 156,342.75

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Solution

The third proportional to 103,920.75 and 156,342.75 is: 235,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.75 : 156,342.75 = 156,342.75 : x
  2. Step 2: Convert to fraction form
    103,920.75/156,342.75 = 156,342.75/x
  3. Step 3: Cross multiply
    103,920.75x = 156,342.75 × 156,342.75
  4. Step 4: Simplify right side
    103,920.75x = 24,443,055,477.56
  5. Step 5: Solve for x
    x = 24,443,055,477.56/103,920.75
  6. Step 6: Final answer
    x = 235,208.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.