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Finding the Fourth Proportional to 192,542.31, 288,690.43 and 92,503.47

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Solution

The fourth proportional to 192,542.31, 288,690.43 and 92,503.47 is: 138,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,542.31 : 288,690.43 = 92,503.47 : x
  2. Step 2: Convert to fraction form
    192,542.31/288,690.43 = 92,503.47/x
  3. Step 3: Cross multiply
    192,542.31x = 288,690.43 × 92,503.47
  4. Step 4: Simplify right side
    192,542.31x = 26,704,866,530.79
  5. Step 5: Solve for x
    x = 26,704,866,530.79/192,542.31
  6. Step 6: Final answer
    x = 138,696.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.