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Finding the Third Proportional to 198,201.75 and 306,051

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Solution

The third proportional to 198,201.75 and 306,051 is: 472,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,201.75 : 306,051 = 306,051 : x
  2. Step 2: Convert to fraction form
    198,201.75/306,051 = 306,051/x
  3. Step 3: Cross multiply
    198,201.75x = 306,051 × 306,051
  4. Step 4: Simplify right side
    198,201.75x = 93,667,214,601
  5. Step 5: Solve for x
    x = 93,667,214,601/198,201.75
  6. Step 6: Final answer
    x = 472,585.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.