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Finding the Fourth Proportional to 90,529.40, 135,802 and 37,224.62

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Solution

The fourth proportional to 90,529.40, 135,802 and 37,224.62 is: 55,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,529.40 : 135,802 = 37,224.62 : x
  2. Step 2: Convert to fraction form
    90,529.40/135,802 = 37,224.62/x
  3. Step 3: Cross multiply
    90,529.40x = 135,802 × 37,224.62
  4. Step 4: Simplify right side
    90,529.40x = 5,055,177,845.24
  5. Step 5: Solve for x
    x = 5,055,177,845.24/90,529.40
  6. Step 6: Final answer
    x = 55,840.18

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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.