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Finding the Fourth Proportional to 264,838.20, 396,738.90 and 159,343.80

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Solution

The fourth proportional to 264,838.20, 396,738.90 and 159,343.80 is: 238,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,838.20 : 396,738.90 = 159,343.80 : x
  2. Step 2: Convert to fraction form
    264,838.20/396,738.90 = 159,343.80/x
  3. Step 3: Cross multiply
    264,838.20x = 396,738.90 × 159,343.80
  4. Step 4: Simplify right side
    264,838.20x = 63,217,883,933.82
  5. Step 5: Solve for x
    x = 63,217,883,933.82/264,838.20
  6. Step 6: Final answer
    x = 238,703.80

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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.