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Finding the Fourth Proportional to 432,249.90, 648,471.33 and 132,760.77

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Solution

The fourth proportional to 432,249.90, 648,471.33 and 132,760.77 is: 199,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,249.90 : 648,471.33 = 132,760.77 : x
  2. Step 2: Convert to fraction form
    432,249.90/648,471.33 = 132,760.77/x
  3. Step 3: Cross multiply
    432,249.90x = 648,471.33 × 132,760.77
  4. Step 4: Simplify right side
    432,249.90x = 86,091,553,093.72
  5. Step 5: Solve for x
    x = 86,091,553,093.72/432,249.90
  6. Step 6: Final answer
    x = 199,170.79

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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.