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Finding the Fourth Proportional to 203,957.37, 305,904.46 and 104,191.29

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Solution

The fourth proportional to 203,957.37, 305,904.46 and 104,191.29 is: 156,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,957.37 : 305,904.46 = 104,191.29 : x
  2. Step 2: Convert to fraction form
    203,957.37/305,904.46 = 104,191.29/x
  3. Step 3: Cross multiply
    203,957.37x = 305,904.46 × 104,191.29
  4. Step 4: Simplify right side
    203,957.37x = 31,872,580,304.15
  5. Step 5: Solve for x
    x = 31,872,580,304.15/203,957.37
  6. Step 6: Final answer
    x = 156,270.79

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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.