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Finding the Third Proportional to 67,726.13 and 90,492.19

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Solution

The third proportional to 67,726.13 and 90,492.19 is: 120,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,726.13 : 90,492.19 = 90,492.19 : x
  2. Step 2: Convert to fraction form
    67,726.13/90,492.19 = 90,492.19/x
  3. Step 3: Cross multiply
    67,726.13x = 90,492.19 × 90,492.19
  4. Step 4: Simplify right side
    67,726.13x = 8,188,835,998.54
  5. Step 5: Solve for x
    x = 8,188,835,998.54/67,726.13
  6. Step 6: Final answer
    x = 120,911.04

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.