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Finding the Fourth Proportional to 171,323.70, 256,985.55 and 92,591.70

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Solution

The fourth proportional to 171,323.70, 256,985.55 and 92,591.70 is: 138,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,323.70 : 256,985.55 = 92,591.70 : x
  2. Step 2: Convert to fraction form
    171,323.70/256,985.55 = 92,591.70/x
  3. Step 3: Cross multiply
    171,323.70x = 256,985.55 × 92,591.70
  4. Step 4: Simplify right side
    171,323.70x = 23,794,728,949.94
  5. Step 5: Solve for x
    x = 23,794,728,949.94/171,323.70
  6. Step 6: Final answer
    x = 138,887.55

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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.