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Finding the Fourth Proportional to 263,699.76, 395,552.11 and 64,021.89

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Solution

The fourth proportional to 263,699.76, 395,552.11 and 64,021.89 is: 96,033.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,699.76 : 395,552.11 = 64,021.89 : x
  2. Step 2: Convert to fraction form
    263,699.76/395,552.11 = 64,021.89/x
  3. Step 3: Cross multiply
    263,699.76x = 395,552.11 × 64,021.89
  4. Step 4: Simplify right side
    263,699.76x = 25,323,993,675.69
  5. Step 5: Solve for x
    x = 25,323,993,675.69/263,699.76
  6. Step 6: Final answer
    x = 96,033.43

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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.