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Finding the Fourth Proportional to 219,617.20, 303,072.24 and 119,015.20

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Solution

The fourth proportional to 219,617.20, 303,072.24 and 119,015.20 is: 164,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,617.20 : 303,072.24 = 119,015.20 : x
  2. Step 2: Convert to fraction form
    219,617.20/303,072.24 = 119,015.20/x
  3. Step 3: Cross multiply
    219,617.20x = 303,072.24 × 119,015.20
  4. Step 4: Simplify right side
    219,617.20x = 36,070,203,258.05
  5. Step 5: Solve for x
    x = 36,070,203,258.05/219,617.20
  6. Step 6: Final answer
    x = 164,241.25

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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.