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Finding the Fourth Proportional to 359,121.57, 495,591.12 and 197,982.41

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Solution

The fourth proportional to 359,121.57, 495,591.12 and 197,982.41 is: 273,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,121.57 : 495,591.12 = 197,982.41 : x
  2. Step 2: Convert to fraction form
    359,121.57/495,591.12 = 197,982.41/x
  3. Step 3: Cross multiply
    359,121.57x = 495,591.12 × 197,982.41
  4. Step 4: Simplify right side
    359,121.57x = 98,118,321,834.24
  5. Step 5: Solve for x
    x = 98,118,321,834.24/359,121.57
  6. Step 6: Final answer
    x = 273,217.57

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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.