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Finding the Fourth Proportional to 263,802.99, 395,700.91 and 64,122.78

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Solution

The fourth proportional to 263,802.99, 395,700.91 and 64,122.78 is: 96,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,802.99 : 395,700.91 = 64,122.78 : x
  2. Step 2: Convert to fraction form
    263,802.99/395,700.91 = 64,122.78/x
  3. Step 3: Cross multiply
    263,802.99x = 395,700.91 × 64,122.78
  4. Step 4: Simplify right side
    263,802.99x = 25,373,442,237.42
  5. Step 5: Solve for x
    x = 25,373,442,237.42/263,802.99
  6. Step 6: Final answer
    x = 96,183.30

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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.