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Finding the Third Proportional to 74,234.13 and 100,856.15

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Solution

The third proportional to 74,234.13 and 100,856.15 is: 137,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,234.13 : 100,856.15 = 100,856.15 : x
  2. Step 2: Convert to fraction form
    74,234.13/100,856.15 = 100,856.15/x
  3. Step 3: Cross multiply
    74,234.13x = 100,856.15 × 100,856.15
  4. Step 4: Simplify right side
    74,234.13x = 10,171,963,662.57
  5. Step 5: Solve for x
    x = 10,171,963,662.57/74,234.13
  6. Step 6: Final answer
    x = 137,025.44

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.