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Finding the Fourth Proportional to 321,273.56, 443,368.96 and 193,924.28

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Solution

The fourth proportional to 321,273.56, 443,368.96 and 193,924.28 is: 267,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,273.56 : 443,368.96 = 193,924.28 : x
  2. Step 2: Convert to fraction form
    321,273.56/443,368.96 = 193,924.28/x
  3. Step 3: Cross multiply
    321,273.56x = 443,368.96 × 193,924.28
  4. Step 4: Simplify right side
    321,273.56x = 85,980,006,342.35
  5. Step 5: Solve for x
    x = 85,980,006,342.35/321,273.56
  6. Step 6: Final answer
    x = 267,622.42

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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.