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Finding the Fourth Proportional to 444,851.72, 667,296.03 and 129,308.63

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Solution

The fourth proportional to 444,851.72, 667,296.03 and 129,308.63 is: 193,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,851.72 : 667,296.03 = 129,308.63 : x
  2. Step 2: Convert to fraction form
    444,851.72/667,296.03 = 129,308.63/x
  3. Step 3: Cross multiply
    444,851.72x = 667,296.03 × 129,308.63
  4. Step 4: Simplify right side
    444,851.72x = 86,287,135,094.53
  5. Step 5: Solve for x
    x = 86,287,135,094.53/444,851.72
  6. Step 6: Final answer
    x = 193,968.31

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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.