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Finding the Fourth Proportional to 321,177.96, 481,747.50 and 84,520.26

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Solution

The fourth proportional to 321,177.96, 481,747.50 and 84,520.26 is: 126,775.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,177.96 : 481,747.50 = 84,520.26 : x
  2. Step 2: Convert to fraction form
    321,177.96/481,747.50 = 84,520.26/x
  3. Step 3: Cross multiply
    321,177.96x = 481,747.50 × 84,520.26
  4. Step 4: Simplify right side
    321,177.96x = 40,717,423,954.35
  5. Step 5: Solve for x
    x = 40,717,423,954.35/321,177.96
  6. Step 6: Final answer
    x = 126,775.27

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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.