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Finding the Fourth Proportional to 276,670.80, 415,006.20 and 197,355.60

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Solution

The fourth proportional to 276,670.80, 415,006.20 and 197,355.60 is: 296,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,670.80 : 415,006.20 = 197,355.60 : x
  2. Step 2: Convert to fraction form
    276,670.80/415,006.20 = 197,355.60/x
  3. Step 3: Cross multiply
    276,670.80x = 415,006.20 × 197,355.60
  4. Step 4: Simplify right side
    276,670.80x = 81,903,797,604.72
  5. Step 5: Solve for x
    x = 81,903,797,604.72/276,670.80
  6. Step 6: Final answer
    x = 296,033.40

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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.