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Finding the Fourth Proportional to 171,897.88, 237,249.38 and 108,255.64

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Solution

The fourth proportional to 171,897.88, 237,249.38 and 108,255.64 is: 149,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,897.88 : 237,249.38 = 108,255.64 : x
  2. Step 2: Convert to fraction form
    171,897.88/237,249.38 = 108,255.64/x
  3. Step 3: Cross multiply
    171,897.88x = 237,249.38 × 108,255.64
  4. Step 4: Simplify right side
    171,897.88x = 25,683,583,471.50
  5. Step 5: Solve for x
    x = 25,683,583,471.50/171,897.88
  6. Step 6: Final answer
    x = 149,411.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.