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Finding the Fourth Proportional to 264,141.92, 396,198.84 and 86,625.56

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Solution

The fourth proportional to 264,141.92, 396,198.84 and 86,625.56 is: 129,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,141.92 : 396,198.84 = 86,625.56 : x
  2. Step 2: Convert to fraction form
    264,141.92/396,198.84 = 86,625.56/x
  3. Step 3: Cross multiply
    264,141.92x = 396,198.84 × 86,625.56
  4. Step 4: Simplify right side
    264,141.92x = 34,320,946,386.35
  5. Step 5: Solve for x
    x = 34,320,946,386.35/264,141.92
  6. Step 6: Final answer
    x = 129,933.74

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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.