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Finding the Fourth Proportional to 100,532.21, 150,791.11 and 58,385.98

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Solution

The fourth proportional to 100,532.21, 150,791.11 and 58,385.98 is: 87,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,532.21 : 150,791.11 = 58,385.98 : x
  2. Step 2: Convert to fraction form
    100,532.21/150,791.11 = 58,385.98/x
  3. Step 3: Cross multiply
    100,532.21x = 150,791.11 × 58,385.98
  4. Step 4: Simplify right side
    100,532.21x = 8,804,086,209.70
  5. Step 5: Solve for x
    x = 8,804,086,209.70/100,532.21
  6. Step 6: Final answer
    x = 87,574.78

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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.