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Finding the Fourth Proportional to 90,937.96, 136,414.94 and 27,772.34

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Solution

The fourth proportional to 90,937.96, 136,414.94 and 27,772.34 is: 41,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,937.96 : 136,414.94 = 27,772.34 : x
  2. Step 2: Convert to fraction form
    90,937.96/136,414.94 = 27,772.34/x
  3. Step 3: Cross multiply
    90,937.96x = 136,414.94 × 27,772.34
  4. Step 4: Simplify right side
    90,937.96x = 3,788,561,273.82
  5. Step 5: Solve for x
    x = 3,788,561,273.82/90,937.96
  6. Step 6: Final answer
    x = 41,660.95

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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.