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Finding the Fourth Proportional to 493,960.96, 740,581.80 and 156,890.80

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Solution

The fourth proportional to 493,960.96, 740,581.80 and 156,890.80 is: 235,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,960.96 : 740,581.80 = 156,890.80 : x
  2. Step 2: Convert to fraction form
    493,960.96/740,581.80 = 156,890.80/x
  3. Step 3: Cross multiply
    493,960.96x = 740,581.80 × 156,890.80
  4. Step 4: Simplify right side
    493,960.96x = 116,190,471,067.44
  5. Step 5: Solve for x
    x = 116,190,471,067.44/493,960.96
  6. Step 6: Final answer
    x = 235,221.97

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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.