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Finding the Fourth Proportional to 203,261.38, 304,843.06 and 84,868.54

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Solution

The fourth proportional to 203,261.38, 304,843.06 and 84,868.54 is: 127,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,261.38 : 304,843.06 = 84,868.54 : x
  2. Step 2: Convert to fraction form
    203,261.38/304,843.06 = 84,868.54/x
  3. Step 3: Cross multiply
    203,261.38x = 304,843.06 × 84,868.54
  4. Step 4: Simplify right side
    203,261.38x = 25,871,584,457.05
  5. Step 5: Solve for x
    x = 25,871,584,457.05/203,261.38
  6. Step 6: Final answer
    x = 127,282.34

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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.