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Finding the Fourth Proportional to 193,542.31, 290,239.43 and 63,680.87

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Solution

The fourth proportional to 193,542.31, 290,239.43 and 63,680.87 is: 95,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,542.31 : 290,239.43 = 63,680.87 : x
  2. Step 2: Convert to fraction form
    193,542.31/290,239.43 = 63,680.87/x
  3. Step 3: Cross multiply
    193,542.31x = 290,239.43 × 63,680.87
  4. Step 4: Simplify right side
    193,542.31x = 18,482,699,410.70
  5. Step 5: Solve for x
    x = 18,482,699,410.70/193,542.31
  6. Step 6: Final answer
    x = 95,496.95

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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.