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Finding the Fourth Proportional to 359,515.20, 539,197.20 and 181,855.20

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Solution

The fourth proportional to 359,515.20, 539,197.20 and 181,855.20 is: 272,744.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,515.20 : 539,197.20 = 181,855.20 : x
  2. Step 2: Convert to fraction form
    359,515.20/539,197.20 = 181,855.20/x
  3. Step 3: Cross multiply
    359,515.20x = 539,197.20 × 181,855.20
  4. Step 4: Simplify right side
    359,515.20x = 98,055,814,645.44
  5. Step 5: Solve for x
    x = 98,055,814,645.44/359,515.20
  6. Step 6: Final answer
    x = 272,744.56

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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.