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Finding the Fourth Proportional to 168,474.83, 252,772.34 and 72,371.66

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Solution

The fourth proportional to 168,474.83, 252,772.34 and 72,371.66 is: 108,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,474.83 : 252,772.34 = 72,371.66 : x
  2. Step 2: Convert to fraction form
    168,474.83/252,772.34 = 72,371.66/x
  3. Step 3: Cross multiply
    168,474.83x = 252,772.34 × 72,371.66
  4. Step 4: Simplify right side
    168,474.83x = 18,293,552,222.16
  5. Step 5: Solve for x
    x = 18,293,552,222.16/168,474.83
  6. Step 6: Final answer
    x = 108,583.30

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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.