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Finding the Fourth Proportional to 132,978.15, 199,468.98 and 44,231.67

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Solution

The fourth proportional to 132,978.15, 199,468.98 and 44,231.67 is: 66,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,978.15 : 199,468.98 = 44,231.67 : x
  2. Step 2: Convert to fraction form
    132,978.15/199,468.98 = 44,231.67/x
  3. Step 3: Cross multiply
    132,978.15x = 199,468.98 × 44,231.67
  4. Step 4: Simplify right side
    132,978.15x = 8,822,846,098.60
  5. Step 5: Solve for x
    x = 8,822,846,098.60/132,978.15
  6. Step 6: Final answer
    x = 66,348.09

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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.