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Finding the Fourth Proportional to 171,195.73, 256,626.63 and 71,384.44

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Solution

The fourth proportional to 171,195.73, 256,626.63 and 71,384.44 is: 107,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,195.73 : 256,626.63 = 71,384.44 : x
  2. Step 2: Convert to fraction form
    171,195.73/256,626.63 = 71,384.44/x
  3. Step 3: Cross multiply
    171,195.73x = 256,626.63 × 71,384.44
  4. Step 4: Simplify right side
    171,195.73x = 18,319,148,111.25
  5. Step 5: Solve for x
    x = 18,319,148,111.25/171,195.73
  6. Step 6: Final answer
    x = 107,007.04

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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.