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Finding the Third Proportional to 75,856.50 and 109,268.75

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Solution

The third proportional to 75,856.50 and 109,268.75 is: 157,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,856.50 : 109,268.75 = 109,268.75 : x
  2. Step 2: Convert to fraction form
    75,856.50/109,268.75 = 109,268.75/x
  3. Step 3: Cross multiply
    75,856.50x = 109,268.75 × 109,268.75
  4. Step 4: Simplify right side
    75,856.50x = 11,939,659,726.56
  5. Step 5: Solve for x
    x = 11,939,659,726.56/75,856.50
  6. Step 6: Final answer
    x = 157,397.98

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.