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Finding the Third Proportional to 99,924 and 216,156

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Solution

The third proportional to 99,924 and 216,156 is: 467,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,924 : 216,156 = 216,156 : x
  2. Step 2: Convert to fraction form
    99,924/216,156 = 216,156/x
  3. Step 3: Cross multiply
    99,924x = 216,156 × 216,156
  4. Step 4: Simplify right side
    99,924x = 46,723,416,336
  5. Step 5: Solve for x
    x = 46,723,416,336/99,924
  6. Step 6: Final answer
    x = 467,589.53

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.