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Finding the Fourth Proportional to 353,634.72, 488,028.76 and 192,481.96

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Solution

The fourth proportional to 353,634.72, 488,028.76 and 192,481.96 is: 265,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,634.72 : 488,028.76 = 192,481.96 : x
  2. Step 2: Convert to fraction form
    353,634.72/488,028.76 = 192,481.96/x
  3. Step 3: Cross multiply
    353,634.72x = 488,028.76 × 192,481.96
  4. Step 4: Simplify right side
    353,634.72x = 93,936,732,261.17
  5. Step 5: Solve for x
    x = 93,936,732,261.17/353,634.72
  6. Step 6: Final answer
    x = 265,632.10

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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.