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Finding the Fourth Proportional to 263,181.05, 394,767.90 and 63,499.76

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Solution

The fourth proportional to 263,181.05, 394,767.90 and 63,499.76 is: 95,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,181.05 : 394,767.90 = 63,499.76 : x
  2. Step 2: Convert to fraction form
    263,181.05/394,767.90 = 63,499.76/x
  3. Step 3: Cross multiply
    263,181.05x = 394,767.90 × 63,499.76
  4. Step 4: Simplify right side
    263,181.05x = 25,067,664,931.86
  5. Step 5: Solve for x
    x = 25,067,664,931.86/263,181.05
  6. Step 6: Final answer
    x = 95,248.75

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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.