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Finding the Fourth Proportional to 171,375.54, 256,895.52 and 71,564.28

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Solution

The fourth proportional to 171,375.54, 256,895.52 and 71,564.28 is: 107,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,375.54 : 256,895.52 = 71,564.28 : x
  2. Step 2: Convert to fraction form
    171,375.54/256,895.52 = 71,564.28/x
  3. Step 3: Cross multiply
    171,375.54x = 256,895.52 × 71,564.28
  4. Step 4: Simplify right side
    171,375.54x = 18,384,543,379.90
  5. Step 5: Solve for x
    x = 18,384,543,379.90/171,375.54
  6. Step 6: Final answer
    x = 107,276.35

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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.