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Finding the Fourth Proportional to 359,589.21, 539,224.94 and 134,791.97

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Solution

The fourth proportional to 359,589.21, 539,224.94 and 134,791.97 is: 202,128.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,589.21 : 539,224.94 = 134,791.97 : x
  2. Step 2: Convert to fraction form
    359,589.21/539,224.94 = 134,791.97/x
  3. Step 3: Cross multiply
    359,589.21x = 539,224.94 × 134,791.97
  4. Step 4: Simplify right side
    359,589.21x = 72,683,189,576.59
  5. Step 5: Solve for x
    x = 72,683,189,576.59/359,589.21
  6. Step 6: Final answer
    x = 202,128.39

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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.