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Finding the Fourth Proportional to 355,235.26, 490,218.86 and 194,086.84

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Solution

The fourth proportional to 355,235.26, 490,218.86 and 194,086.84 is: 267,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,235.26 : 490,218.86 = 194,086.84 : x
  2. Step 2: Convert to fraction form
    355,235.26/490,218.86 = 194,086.84/x
  3. Step 3: Cross multiply
    355,235.26x = 490,218.86 × 194,086.84
  4. Step 4: Simplify right side
    355,235.26x = 95,145,029,445.80
  5. Step 5: Solve for x
    x = 95,145,029,445.80/355,235.26
  6. Step 6: Final answer
    x = 267,836.67

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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.