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Finding the Fourth Proportional to 171,243.60, 256,865.76 and 92,394.96

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Solution

The fourth proportional to 171,243.60, 256,865.76 and 92,394.96 is: 138,592.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,243.60 : 256,865.76 = 92,394.96 : x
  2. Step 2: Convert to fraction form
    171,243.60/256,865.76 = 92,394.96/x
  3. Step 3: Cross multiply
    171,243.60x = 256,865.76 × 92,394.96
  4. Step 4: Simplify right side
    171,243.60x = 23,733,101,620.57
  5. Step 5: Solve for x
    x = 23,733,101,620.57/171,243.60
  6. Step 6: Final answer
    x = 138,592.63

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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.