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Finding the Fourth Proportional to 217,533.10, 300,169.46 and 120,736.48

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Solution

The fourth proportional to 217,533.10, 300,169.46 and 120,736.48 is: 166,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,533.10 : 300,169.46 = 120,736.48 : x
  2. Step 2: Convert to fraction form
    217,533.10/300,169.46 = 120,736.48/x
  3. Step 3: Cross multiply
    217,533.10x = 300,169.46 × 120,736.48
  4. Step 4: Simplify right side
    217,533.10x = 36,241,404,003.90
  5. Step 5: Solve for x
    x = 36,241,404,003.90/217,533.10
  6. Step 6: Final answer
    x = 166,601.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.