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Finding the Fourth Proportional to 359,651.87, 496,284.21 and 198,496.53

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Solution

The fourth proportional to 359,651.87, 496,284.21 and 198,496.53 is: 273,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,651.87 : 496,284.21 = 198,496.53 : x
  2. Step 2: Convert to fraction form
    359,651.87/496,284.21 = 198,496.53/x
  3. Step 3: Cross multiply
    359,651.87x = 496,284.21 × 198,496.53
  4. Step 4: Simplify right side
    359,651.87x = 98,510,693,578.79
  5. Step 5: Solve for x
    x = 98,510,693,578.79/359,651.87
  6. Step 6: Final answer
    x = 273,905.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.