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Finding the Fourth Proportional to 90,303.73, 135,464.55 and 33,392.56

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Solution

The fourth proportional to 90,303.73, 135,464.55 and 33,392.56 is: 50,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,303.73 : 135,464.55 = 33,392.56 : x
  2. Step 2: Convert to fraction form
    90,303.73/135,464.55 = 33,392.56/x
  3. Step 3: Cross multiply
    90,303.73x = 135,464.55 × 33,392.56
  4. Step 4: Simplify right side
    90,303.73x = 4,523,508,113.75
  5. Step 5: Solve for x
    x = 4,523,508,113.75/90,303.73
  6. Step 6: Final answer
    x = 50,092.15

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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.