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Finding the Third Proportional to 99,727.13 and 216,069

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Solution

The third proportional to 99,727.13 and 216,069 is: 468,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.13 : 216,069 = 216,069 : x
  2. Step 2: Convert to fraction form
    99,727.13/216,069 = 216,069/x
  3. Step 3: Cross multiply
    99,727.13x = 216,069 × 216,069
  4. Step 4: Simplify right side
    99,727.13x = 46,685,812,761
  5. Step 5: Solve for x
    x = 46,685,812,761/99,727.13
  6. Step 6: Final answer
    x = 468,135.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.