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Finding the Fourth Proportional to 72,571.53, 108,861.35 and 22,658.52

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Solution

The fourth proportional to 72,571.53, 108,861.35 and 22,658.52 is: 33,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,571.53 : 108,861.35 = 22,658.52 : x
  2. Step 2: Convert to fraction form
    72,571.53/108,861.35 = 22,658.52/x
  3. Step 3: Cross multiply
    72,571.53x = 108,861.35 × 22,658.52
  4. Step 4: Simplify right side
    72,571.53x = 2,466,637,076.20
  5. Step 5: Solve for x
    x = 2,466,637,076.20/72,571.53
  6. Step 6: Final answer
    x = 33,989.05

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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.