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Finding the Fourth Proportional to 356,073.48, 491,380.56 and 194,928.48

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Solution

The fourth proportional to 356,073.48, 491,380.56 and 194,928.48 is: 269,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,073.48 : 491,380.56 = 194,928.48 : x
  2. Step 2: Convert to fraction form
    356,073.48/491,380.56 = 194,928.48/x
  3. Step 3: Cross multiply
    356,073.48x = 491,380.56 × 194,928.48
  4. Step 4: Simplify right side
    356,073.48x = 95,784,065,662.35
  5. Step 5: Solve for x
    x = 95,784,065,662.35/356,073.48
  6. Step 6: Final answer
    x = 269,000.84

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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.