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Finding the Fourth Proportional to 350,081, 483,111.78 and 191,105

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Solution

The fourth proportional to 350,081, 483,111.78 and 191,105 is: 263,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,081 : 483,111.78 = 191,105 : x
  2. Step 2: Convert to fraction form
    350,081/483,111.78 = 191,105/x
  3. Step 3: Cross multiply
    350,081x = 483,111.78 × 191,105
  4. Step 4: Simplify right side
    350,081x = 92,325,076,716.90
  5. Step 5: Solve for x
    x = 92,325,076,716.90/350,081
  6. Step 6: Final answer
    x = 263,724.90

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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.