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Finding the Fourth Proportional to 353,672.30, 488,067.78 and 192,528.52

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Solution

The fourth proportional to 353,672.30, 488,067.78 and 192,528.52 is: 265,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,672.30 : 488,067.78 = 192,528.52 : x
  2. Step 2: Convert to fraction form
    353,672.30/488,067.78 = 192,528.52/x
  3. Step 3: Cross multiply
    353,672.30x = 488,067.78 × 192,528.52
  4. Step 4: Simplify right side
    353,672.30x = 93,966,967,134.62
  5. Step 5: Solve for x
    x = 93,966,967,134.62/353,672.30
  6. Step 6: Final answer
    x = 265,689.36

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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.