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Finding the Fourth Proportional to 351,222, 484,687.52 and 190,076.96

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Solution

The fourth proportional to 351,222, 484,687.52 and 190,076.96 is: 262,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,222 : 484,687.52 = 190,076.96 : x
  2. Step 2: Convert to fraction form
    351,222/484,687.52 = 190,076.96/x
  3. Step 3: Cross multiply
    351,222x = 484,687.52 × 190,076.96
  4. Step 4: Simplify right side
    351,222x = 92,127,930,351.54
  5. Step 5: Solve for x
    x = 92,127,930,351.54/351,222
  6. Step 6: Final answer
    x = 262,306.83

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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.