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Finding the Fourth Proportional to 125,630.46, 188,371.89 and 50,752.98

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Solution

The fourth proportional to 125,630.46, 188,371.89 and 50,752.98 is: 76,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,630.46 : 188,371.89 = 50,752.98 : x
  2. Step 2: Convert to fraction form
    125,630.46/188,371.89 = 50,752.98/x
  3. Step 3: Cross multiply
    125,630.46x = 188,371.89 × 50,752.98
  4. Step 4: Simplify right side
    125,630.46x = 9,560,434,765.73
  5. Step 5: Solve for x
    x = 9,560,434,765.73/125,630.46
  6. Step 6: Final answer
    x = 76,099.66

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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.