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Finding the Fourth Proportional to 171,498.27, 257,247.41 and 71,604.08

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Solution

The fourth proportional to 171,498.27, 257,247.41 and 71,604.08 is: 107,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,498.27 : 257,247.41 = 71,604.08 : x
  2. Step 2: Convert to fraction form
    171,498.27/257,247.41 = 71,604.08/x
  3. Step 3: Cross multiply
    171,498.27x = 257,247.41 × 71,604.08
  4. Step 4: Simplify right side
    171,498.27x = 18,419,964,125.43
  5. Step 5: Solve for x
    x = 18,419,964,125.43/171,498.27
  6. Step 6: Final answer
    x = 107,406.12

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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.