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Finding the Fourth Proportional to 359,425.43, 496,007.61 and 198,280.16

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Solution

The fourth proportional to 359,425.43, 496,007.61 and 198,280.16 is: 273,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,425.43 : 496,007.61 = 198,280.16 : x
  2. Step 2: Convert to fraction form
    359,425.43/496,007.61 = 198,280.16/x
  3. Step 3: Cross multiply
    359,425.43x = 496,007.61 × 198,280.16
  4. Step 4: Simplify right side
    359,425.43x = 98,348,468,272.02
  5. Step 5: Solve for x
    x = 98,348,468,272.02/359,425.43
  6. Step 6: Final answer
    x = 273,626.91

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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.