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Finding the Fourth Proportional to 336,885.80, 505,328.70 and 159,738.80

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Solution

The fourth proportional to 336,885.80, 505,328.70 and 159,738.80 is: 239,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,885.80 : 505,328.70 = 159,738.80 : x
  2. Step 2: Convert to fraction form
    336,885.80/505,328.70 = 159,738.80/x
  3. Step 3: Cross multiply
    336,885.80x = 505,328.70 × 159,738.80
  4. Step 4: Simplify right side
    336,885.80x = 80,720,600,143.56
  5. Step 5: Solve for x
    x = 80,720,600,143.56/336,885.80
  6. Step 6: Final answer
    x = 239,608.20

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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.