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Finding the Fourth Proportional to 277,633.73, 383,112.74 and 156,786.94

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Solution

The fourth proportional to 277,633.73, 383,112.74 and 156,786.94 is: 216,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,633.73 : 383,112.74 = 156,786.94 : x
  2. Step 2: Convert to fraction form
    277,633.73/383,112.74 = 156,786.94/x
  3. Step 3: Cross multiply
    277,633.73x = 383,112.74 × 156,786.94
  4. Step 4: Simplify right side
    277,633.73x = 60,067,074,168.55
  5. Step 5: Solve for x
    x = 60,067,074,168.55/277,633.73
  6. Step 6: Final answer
    x = 216,353.66

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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.