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Finding the Fourth Proportional to 358,083.38, 537,125.21 and 91,843.88

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Solution

The fourth proportional to 358,083.38, 537,125.21 and 91,843.88 is: 137,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,083.38 : 537,125.21 = 91,843.88 : x
  2. Step 2: Convert to fraction form
    358,083.38/537,125.21 = 91,843.88/x
  3. Step 3: Cross multiply
    358,083.38x = 537,125.21 × 91,843.88
  4. Step 4: Simplify right side
    358,083.38x = 49,331,660,531.78
  5. Step 5: Solve for x
    x = 49,331,660,531.78/358,083.38
  6. Step 6: Final answer
    x = 137,765.85

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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.