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Finding the Fourth Proportional to 259,753.33, 389,631.08 and 82,384.93

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Solution

The fourth proportional to 259,753.33, 389,631.08 and 82,384.93 is: 123,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,753.33 : 389,631.08 = 82,384.93 : x
  2. Step 2: Convert to fraction form
    259,753.33/389,631.08 = 82,384.93/x
  3. Step 3: Cross multiply
    259,753.33x = 389,631.08 × 82,384.93
  4. Step 4: Simplify right side
    259,753.33x = 32,099,729,251.62
  5. Step 5: Solve for x
    x = 32,099,729,251.62/259,753.33
  6. Step 6: Final answer
    x = 123,577.74

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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.