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Finding the Fourth Proportional to 399,502.56, 599,179.86 and 159,596.04

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Solution

The fourth proportional to 399,502.56, 599,179.86 and 159,596.04 is: 239,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,502.56 : 599,179.86 = 159,596.04 : x
  2. Step 2: Convert to fraction form
    399,502.56/599,179.86 = 159,596.04/x
  3. Step 3: Cross multiply
    399,502.56x = 599,179.86 × 159,596.04
  4. Step 4: Simplify right side
    399,502.56x = 95,626,732,903.75
  5. Step 5: Solve for x
    x = 95,626,732,903.75/399,502.56
  6. Step 6: Final answer
    x = 239,364.51

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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.