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Finding the Fourth Proportional to 393,224.70, 589,982.85 and 156,737.10

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Solution

The fourth proportional to 393,224.70, 589,982.85 and 156,737.10 is: 235,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,224.70 : 589,982.85 = 156,737.10 : x
  2. Step 2: Convert to fraction form
    393,224.70/589,982.85 = 156,737.10/x
  3. Step 3: Cross multiply
    393,224.70x = 589,982.85 × 156,737.10
  4. Step 4: Simplify right side
    393,224.70x = 92,472,200,958.74
  5. Step 5: Solve for x
    x = 92,472,200,958.74/393,224.70
  6. Step 6: Final answer
    x = 235,163.77

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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.