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Finding the Third Proportional to 99,176 and 213,904

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Solution

The third proportional to 99,176 and 213,904 is: 461,350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,176 : 213,904 = 213,904 : x
  2. Step 2: Convert to fraction form
    99,176/213,904 = 213,904/x
  3. Step 3: Cross multiply
    99,176x = 213,904 × 213,904
  4. Step 4: Simplify right side
    99,176x = 45,754,921,216
  5. Step 5: Solve for x
    x = 45,754,921,216/99,176
  6. Step 6: Final answer
    x = 461,350.74

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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.