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Finding the Fourth Proportional to 353,704.25, 488,120.61 and 192,568.15

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Solution

The fourth proportional to 353,704.25, 488,120.61 and 192,568.15 is: 265,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,704.25 : 488,120.61 = 192,568.15 : x
  2. Step 2: Convert to fraction form
    353,704.25/488,120.61 = 192,568.15/x
  3. Step 3: Cross multiply
    353,704.25x = 488,120.61 × 192,568.15
  4. Step 4: Simplify right side
    353,704.25x = 93,996,484,176.85
  5. Step 5: Solve for x
    x = 93,996,484,176.85/353,704.25
  6. Step 6: Final answer
    x = 265,748.81

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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.