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Finding the Third Proportional to 99,816.75 and 215,246.25

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Solution

The third proportional to 99,816.75 and 215,246.25 is: 464,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816.75 : 215,246.25 = 215,246.25 : x
  2. Step 2: Convert to fraction form
    99,816.75/215,246.25 = 215,246.25/x
  3. Step 3: Cross multiply
    99,816.75x = 215,246.25 × 215,246.25
  4. Step 4: Simplify right side
    99,816.75x = 46,330,948,139.06
  5. Step 5: Solve for x
    x = 46,330,948,139.06/99,816.75
  6. Step 6: Final answer
    x = 464,160.05

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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.