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Finding the Fourth Proportional to 359,553.48, 539,190.05 and 134,791.28

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Solution

The fourth proportional to 359,553.48, 539,190.05 and 134,791.28 is: 202,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,553.48 : 539,190.05 = 134,791.28 : x
  2. Step 2: Convert to fraction form
    359,553.48/539,190.05 = 134,791.28/x
  3. Step 3: Cross multiply
    359,553.48x = 539,190.05 × 134,791.28
  4. Step 4: Simplify right side
    359,553.48x = 72,678,116,223.44
  5. Step 5: Solve for x
    x = 72,678,116,223.44/359,553.48
  6. Step 6: Final answer
    x = 202,134.37

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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.