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Finding the Fourth Proportional to 79,227, 118,692.18 and 39,737.88

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Solution

The fourth proportional to 79,227, 118,692.18 and 39,737.88 is: 59,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,227 : 118,692.18 = 39,737.88 : x
  2. Step 2: Convert to fraction form
    79,227/118,692.18 = 39,737.88/x
  3. Step 3: Cross multiply
    79,227x = 118,692.18 × 39,737.88
  4. Step 4: Simplify right side
    79,227x = 4,716,575,605.78
  5. Step 5: Solve for x
    x = 4,716,575,605.78/79,227
  6. Step 6: Final answer
    x = 59,532.43

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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.