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Finding the Fourth Proportional to 71,197.55, 106,650.53 and 36,156.95

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Solution

The fourth proportional to 71,197.55, 106,650.53 and 36,156.95 is: 54,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,197.55 : 106,650.53 = 36,156.95 : x
  2. Step 2: Convert to fraction form
    71,197.55/106,650.53 = 36,156.95/x
  3. Step 3: Cross multiply
    71,197.55x = 106,650.53 × 36,156.95
  4. Step 4: Simplify right side
    71,197.55x = 3,856,157,699.90
  5. Step 5: Solve for x
    x = 3,856,157,699.90/71,197.55
  6. Step 6: Final answer
    x = 54,161.38

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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.