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Finding the Fourth Proportional to 359,463.15, 496,059.21 and 198,318.60

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Solution

The fourth proportional to 359,463.15, 496,059.21 and 198,318.60 is: 273,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,463.15 : 496,059.21 = 198,318.60 : x
  2. Step 2: Convert to fraction form
    359,463.15/496,059.21 = 198,318.60/x
  3. Step 3: Cross multiply
    359,463.15x = 496,059.21 × 198,318.60
  4. Step 4: Simplify right side
    359,463.15x = 98,377,768,044.31
  5. Step 5: Solve for x
    x = 98,377,768,044.31/359,463.15
  6. Step 6: Final answer
    x = 273,679.70

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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.