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Finding the Fourth Proportional to 220,231.20, 303,919.20 and 119,629.20

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Solution

The fourth proportional to 220,231.20, 303,919.20 and 119,629.20 is: 165,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,231.20 : 303,919.20 = 119,629.20 : x
  2. Step 2: Convert to fraction form
    220,231.20/303,919.20 = 119,629.20/x
  3. Step 3: Cross multiply
    220,231.20x = 303,919.20 × 119,629.20
  4. Step 4: Simplify right side
    220,231.20x = 36,357,610,760.64
  5. Step 5: Solve for x
    x = 36,357,610,760.64/220,231.20
  6. Step 6: Final answer
    x = 165,088.37

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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.