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Finding the Fourth Proportional to 613,357.67, 920,073.41 and 192,633.54

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Solution

The fourth proportional to 613,357.67, 920,073.41 and 192,633.54 is: 288,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,357.67 : 920,073.41 = 192,633.54 : x
  2. Step 2: Convert to fraction form
    613,357.67/920,073.41 = 192,633.54/x
  3. Step 3: Cross multiply
    613,357.67x = 920,073.41 × 192,633.54
  4. Step 4: Simplify right side
    613,357.67x = 177,236,998,970.74
  5. Step 5: Solve for x
    x = 177,236,998,970.74/613,357.67
  6. Step 6: Final answer
    x = 288,961.90

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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.