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Finding the Fourth Proportional to 203,257.05, 303,435.51 and 189,749.56

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Solution

The fourth proportional to 203,257.05, 303,435.51 and 189,749.56 is: 283,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,257.05 : 303,435.51 = 189,749.56 : x
  2. Step 2: Convert to fraction form
    203,257.05/303,435.51 = 189,749.56/x
  3. Step 3: Cross multiply
    203,257.05x = 303,435.51 × 189,749.56
  4. Step 4: Simplify right side
    203,257.05x = 57,576,754,510.88
  5. Step 5: Solve for x
    x = 57,576,754,510.88/203,257.05
  6. Step 6: Final answer
    x = 283,270.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.