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Finding the Fourth Proportional to 399,062.57, 598,630.73 and 159,118.56

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Solution

The fourth proportional to 399,062.57, 598,630.73 and 159,118.56 is: 238,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,062.57 : 598,630.73 = 159,118.56 : x
  2. Step 2: Convert to fraction form
    399,062.57/598,630.73 = 159,118.56/x
  3. Step 3: Cross multiply
    399,062.57x = 598,630.73 × 159,118.56
  4. Step 4: Simplify right side
    399,062.57x = 95,253,258,933.76
  5. Step 5: Solve for x
    x = 95,253,258,933.76/399,062.57
  6. Step 6: Final answer
    x = 238,692.54

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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.