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Finding the Fourth Proportional to 81,611.92, 122,455.56 and 37,252.27

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Solution

The fourth proportional to 81,611.92, 122,455.56 and 37,252.27 is: 55,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.92 : 122,455.56 = 37,252.27 : x
  2. Step 2: Convert to fraction form
    81,611.92/122,455.56 = 37,252.27/x
  3. Step 3: Cross multiply
    81,611.92x = 122,455.56 × 37,252.27
  4. Step 4: Simplify right side
    81,611.92x = 4,561,747,876.89
  5. Step 5: Solve for x
    x = 4,561,747,876.89/81,611.92
  6. Step 6: Final answer
    x = 55,895.61

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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.