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Finding the Fourth Proportional to 103,635.70, 155,453.55 and 37,081.05

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Solution

The fourth proportional to 103,635.70, 155,453.55 and 37,081.05 is: 55,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.70 : 155,453.55 = 37,081.05 : x
  2. Step 2: Convert to fraction form
    103,635.70/155,453.55 = 37,081.05/x
  3. Step 3: Cross multiply
    103,635.70x = 155,453.55 × 37,081.05
  4. Step 4: Simplify right side
    103,635.70x = 5,764,380,860.23
  5. Step 5: Solve for x
    x = 5,764,380,860.23/103,635.70
  6. Step 6: Final answer
    x = 55,621.58

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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.