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Finding the Fourth Proportional to 444,847.42, 667,369.14 and 129,328.93

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Solution

The fourth proportional to 444,847.42, 667,369.14 and 129,328.93 is: 194,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,847.42 : 667,369.14 = 129,328.93 : x
  2. Step 2: Convert to fraction form
    444,847.42/667,369.14 = 129,328.93/x
  3. Step 3: Cross multiply
    444,847.42x = 667,369.14 × 129,328.93
  4. Step 4: Simplify right side
    444,847.42x = 86,310,136,791.22
  5. Step 5: Solve for x
    x = 86,310,136,791.22/444,847.42
  6. Step 6: Final answer
    x = 194,021.89

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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.