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Finding the Fourth Proportional to 171,095.69, 256,621.66 and 71,237.27

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Solution

The fourth proportional to 171,095.69, 256,621.66 and 71,237.27 is: 106,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,095.69 : 256,621.66 = 71,237.27 : x
  2. Step 2: Convert to fraction form
    171,095.69/256,621.66 = 71,237.27/x
  3. Step 3: Cross multiply
    171,095.69x = 256,621.66 × 71,237.27
  4. Step 4: Simplify right side
    171,095.69x = 18,281,026,481.27
  5. Step 5: Solve for x
    x = 18,281,026,481.27/171,095.69
  6. Step 6: Final answer
    x = 106,846.80

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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.