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Finding the Fourth Proportional to 318,976.73, 440,251.64 and 183,102.54

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Solution

The fourth proportional to 318,976.73, 440,251.64 and 183,102.54 is: 252,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,976.73 : 440,251.64 = 183,102.54 : x
  2. Step 2: Convert to fraction form
    318,976.73/440,251.64 = 183,102.54/x
  3. Step 3: Cross multiply
    318,976.73x = 440,251.64 × 183,102.54
  4. Step 4: Simplify right side
    318,976.73x = 80,611,193,523.17
  5. Step 5: Solve for x
    x = 80,611,193,523.17/318,976.73
  6. Step 6: Final answer
    x = 252,718.10

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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.