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Finding the Fourth Proportional to 353,711.20, 488,112.24 and 192,569.44

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Solution

The fourth proportional to 353,711.20, 488,112.24 and 192,569.44 is: 265,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,711.20 : 488,112.24 = 192,569.44 : x
  2. Step 2: Convert to fraction form
    353,711.20/488,112.24 = 192,569.44/x
  3. Step 3: Cross multiply
    353,711.20x = 488,112.24 × 192,569.44
  4. Step 4: Simplify right side
    353,711.20x = 93,995,500,713.95
  5. Step 5: Solve for x
    x = 93,995,500,713.95/353,711.20
  6. Step 6: Final answer
    x = 265,740.81

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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.