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Finding the Fourth Proportional to 399,626.87, 599,050.69 and 159,669.23

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Solution

The fourth proportional to 399,626.87, 599,050.69 and 159,669.23 is: 239,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,626.87 : 599,050.69 = 159,669.23 : x
  2. Step 2: Convert to fraction form
    399,626.87/599,050.69 = 159,669.23/x
  3. Step 3: Cross multiply
    399,626.87x = 599,050.69 × 159,669.23
  4. Step 4: Simplify right side
    399,626.87x = 95,649,959,008.84
  5. Step 5: Solve for x
    x = 95,649,959,008.84/399,626.87
  6. Step 6: Final answer
    x = 239,348.17

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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.