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Finding the Third Proportional to 99,892.13 and 212,497.88

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Solution

The third proportional to 99,892.13 and 212,497.88 is: 452,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,892.13 : 212,497.88 = 212,497.88 : x
  2. Step 2: Convert to fraction form
    99,892.13/212,497.88 = 212,497.88/x
  3. Step 3: Cross multiply
    99,892.13x = 212,497.88 × 212,497.88
  4. Step 4: Simplify right side
    99,892.13x = 45,155,346,879.52
  5. Step 5: Solve for x
    x = 45,155,346,879.52/99,892.13
  6. Step 6: Final answer
    x = 452,041.11

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.