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Finding the Fourth Proportional to 277,716.35, 383,249.79 and 156,859.08

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Solution

The fourth proportional to 277,716.35, 383,249.79 and 156,859.08 is: 216,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,716.35 : 383,249.79 = 156,859.08 : x
  2. Step 2: Convert to fraction form
    277,716.35/383,249.79 = 156,859.08/x
  3. Step 3: Cross multiply
    277,716.35x = 383,249.79 × 156,859.08
  4. Step 4: Simplify right side
    277,716.35x = 60,116,209,469.59
  5. Step 5: Solve for x
    x = 60,116,209,469.59/277,716.35
  6. Step 6: Final answer
    x = 216,466.23

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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.