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Finding the Fourth Proportional to 90,297.39, 135,450.95 and 37,653.87

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Solution

The fourth proportional to 90,297.39, 135,450.95 and 37,653.87 is: 56,482.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,297.39 : 135,450.95 = 37,653.87 : x
  2. Step 2: Convert to fraction form
    90,297.39/135,450.95 = 37,653.87/x
  3. Step 3: Cross multiply
    90,297.39x = 135,450.95 × 37,653.87
  4. Step 4: Simplify right side
    90,297.39x = 5,100,252,274.41
  5. Step 5: Solve for x
    x = 5,100,252,274.41/90,297.39
  6. Step 6: Final answer
    x = 56,482.83

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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.