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Finding the Third Proportional to 100,833.75 and 220,135.50

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Solution

The third proportional to 100,833.75 and 220,135.50 is: 480,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,833.75 : 220,135.50 = 220,135.50 : x
  2. Step 2: Convert to fraction form
    100,833.75/220,135.50 = 220,135.50/x
  3. Step 3: Cross multiply
    100,833.75x = 220,135.50 × 220,135.50
  4. Step 4: Simplify right side
    100,833.75x = 48,459,638,360.25
  5. Step 5: Solve for x
    x = 48,459,638,360.25/100,833.75
  6. Step 6: Final answer
    x = 480,589.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.