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Finding the Fourth Proportional to 203,516.64, 305,289.53 and 53,755.44

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Solution

The fourth proportional to 203,516.64, 305,289.53 and 53,755.44 is: 80,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,516.64 : 305,289.53 = 53,755.44 : x
  2. Step 2: Convert to fraction form
    203,516.64/305,289.53 = 53,755.44/x
  3. Step 3: Cross multiply
    203,516.64x = 305,289.53 × 53,755.44
  4. Step 4: Simplify right side
    203,516.64x = 16,410,973,012.54
  5. Step 5: Solve for x
    x = 16,410,973,012.54/203,516.64
  6. Step 6: Final answer
    x = 80,637.01

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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.