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Finding the Fourth Proportional to 300,447.65, 450,826.82 and 132,086.09

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Solution

The fourth proportional to 300,447.65, 450,826.82 and 132,086.09 is: 198,197.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,447.65 : 450,826.82 = 132,086.09 : x
  2. Step 2: Convert to fraction form
    300,447.65/450,826.82 = 132,086.09/x
  3. Step 3: Cross multiply
    300,447.65x = 450,826.82 × 132,086.09
  4. Step 4: Simplify right side
    300,447.65x = 59,547,951,920.93
  5. Step 5: Solve for x
    x = 59,547,951,920.93/300,447.65
  6. Step 6: Final answer
    x = 198,197.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.