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Finding the Fourth Proportional to 169,467.47, 253,891.38 and 79,344.85

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Solution

The fourth proportional to 169,467.47, 253,891.38 and 79,344.85 is: 118,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,467.47 : 253,891.38 = 79,344.85 : x
  2. Step 2: Convert to fraction form
    169,467.47/253,891.38 = 79,344.85/x
  3. Step 3: Cross multiply
    169,467.47x = 253,891.38 × 79,344.85
  4. Step 4: Simplify right side
    169,467.47x = 20,144,972,192.94
  5. Step 5: Solve for x
    x = 20,144,972,192.94/169,467.47
  6. Step 6: Final answer
    x = 118,872.21

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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.