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Finding the Third Proportional to 101,818.50 and 219,309

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Solution

The third proportional to 101,818.50 and 219,309 is: 472,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,818.50 : 219,309 = 219,309 : x
  2. Step 2: Convert to fraction form
    101,818.50/219,309 = 219,309/x
  3. Step 3: Cross multiply
    101,818.50x = 219,309 × 219,309
  4. Step 4: Simplify right side
    101,818.50x = 48,096,437,481
  5. Step 5: Solve for x
    x = 48,096,437,481/101,818.50
  6. Step 6: Final answer
    x = 472,374.25

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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.