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Finding the Fourth Proportional to 90,592.94, 135,900.20 and 43,812.20

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Solution

The fourth proportional to 90,592.94, 135,900.20 and 43,812.20 is: 65,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,592.94 : 135,900.20 = 43,812.20 : x
  2. Step 2: Convert to fraction form
    90,592.94/135,900.20 = 43,812.20/x
  3. Step 3: Cross multiply
    90,592.94x = 135,900.20 × 43,812.20
  4. Step 4: Simplify right side
    90,592.94x = 5,954,085,843.88
  5. Step 5: Solve for x
    x = 5,954,085,843.88/90,592.94
  6. Step 6: Final answer
    x = 65,723.51

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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.