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Finding the Fourth Proportional to 171,318.30, 256,977.45 and 92,586.30

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Solution

The fourth proportional to 171,318.30, 256,977.45 and 92,586.30 is: 138,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,318.30 : 256,977.45 = 92,586.30 : x
  2. Step 2: Convert to fraction form
    171,318.30/256,977.45 = 92,586.30/x
  3. Step 3: Cross multiply
    171,318.30x = 256,977.45 × 92,586.30
  4. Step 4: Simplify right side
    171,318.30x = 23,792,591,278.94
  5. Step 5: Solve for x
    x = 23,792,591,278.94/171,318.30
  6. Step 6: Final answer
    x = 138,879.45

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1.5x scale

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.