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Finding the Fourth Proportional to 355,222.64, 490,181.66 and 194,043.48

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Solution

The fourth proportional to 355,222.64, 490,181.66 and 194,043.48 is: 267,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,222.64 : 490,181.66 = 194,043.48 : x
  2. Step 2: Convert to fraction form
    355,222.64/490,181.66 = 194,043.48/x
  3. Step 3: Cross multiply
    355,222.64x = 490,181.66 × 194,043.48
  4. Step 4: Simplify right side
    355,222.64x = 95,116,553,057.84
  5. Step 5: Solve for x
    x = 95,116,553,057.84/355,222.64
  6. Step 6: Final answer
    x = 267,766.02

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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.