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Finding the Fourth Proportional to 481,698.75, 722,559.82 and 161,855.20

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Solution

The fourth proportional to 481,698.75, 722,559.82 and 161,855.20 is: 242,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,698.75 : 722,559.82 = 161,855.20 : x
  2. Step 2: Convert to fraction form
    481,698.75/722,559.82 = 161,855.20/x
  3. Step 3: Cross multiply
    481,698.75x = 722,559.82 × 161,855.20
  4. Step 4: Simplify right side
    481,698.75x = 116,950,063,508.79
  5. Step 5: Solve for x
    x = 116,950,063,508.79/481,698.75
  6. Step 6: Final answer
    x = 242,786.73

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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.