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Finding the Fourth Proportional to 558,861.72, 838,223.28 and 159,537.48

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Solution

The fourth proportional to 558,861.72, 838,223.28 and 159,537.48 is: 239,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,861.72 : 838,223.28 = 159,537.48 : x
  2. Step 2: Convert to fraction form
    558,861.72/838,223.28 = 159,537.48/x
  3. Step 3: Cross multiply
    558,861.72x = 838,223.28 × 159,537.48
  4. Step 4: Simplify right side
    558,861.72x = 133,728,029,768.53
  5. Step 5: Solve for x
    x = 133,728,029,768.53/558,861.72
  6. Step 6: Final answer
    x = 239,286.44

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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.