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Finding the Fourth Proportional to 203,168.01, 304,780.56 and 84,812.43

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Solution

The fourth proportional to 203,168.01, 304,780.56 and 84,812.43 is: 127,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,168.01 : 304,780.56 = 84,812.43 : x
  2. Step 2: Convert to fraction form
    203,168.01/304,780.56 = 84,812.43/x
  3. Step 3: Cross multiply
    203,168.01x = 304,780.56 × 84,812.43
  4. Step 4: Simplify right side
    203,168.01x = 25,849,179,910.36
  5. Step 5: Solve for x
    x = 25,849,179,910.36/203,168.01
  6. Step 6: Final answer
    x = 127,230.56

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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.