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Finding the Fourth Proportional to 90,375.84, 135,532.55 and 37,052.69

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Solution

The fourth proportional to 90,375.84, 135,532.55 and 37,052.69 is: 55,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,375.84 : 135,532.55 = 37,052.69 : x
  2. Step 2: Convert to fraction form
    90,375.84/135,532.55 = 37,052.69/x
  3. Step 3: Cross multiply
    90,375.84x = 135,532.55 × 37,052.69
  4. Step 4: Simplify right side
    90,375.84x = 5,021,844,975.03
  5. Step 5: Solve for x
    x = 5,021,844,975.03/90,375.84
  6. Step 6: Final answer
    x = 55,566.23

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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.