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Finding the Fourth Proportional to 179,571.87, 269,356.19 and 68,763.87

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Solution

The fourth proportional to 179,571.87, 269,356.19 and 68,763.87 is: 103,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,571.87 : 269,356.19 = 68,763.87 : x
  2. Step 2: Convert to fraction form
    179,571.87/269,356.19 = 68,763.87/x
  3. Step 3: Cross multiply
    179,571.87x = 269,356.19 × 68,763.87
  4. Step 4: Simplify right side
    179,571.87x = 18,521,973,689.04
  5. Step 5: Solve for x
    x = 18,521,973,689.04/179,571.87
  6. Step 6: Final answer
    x = 103,145.18

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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.