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Finding the Fourth Proportional to 203,596.54, 280,964.92 and 112,958.46

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Solution

The fourth proportional to 203,596.54, 280,964.92 and 112,958.46 is: 155,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,596.54 : 280,964.92 = 112,958.46 : x
  2. Step 2: Convert to fraction form
    203,596.54/280,964.92 = 112,958.46/x
  3. Step 3: Cross multiply
    203,596.54x = 280,964.92 × 112,958.46
  4. Step 4: Simplify right side
    203,596.54x = 31,737,364,677.22
  5. Step 5: Solve for x
    x = 31,737,364,677.22/203,596.54
  6. Step 6: Final answer
    x = 155,883.62

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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.