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Finding the Fourth Proportional to 321,060.76, 443,067.12 and 193,711.75

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Solution

The fourth proportional to 321,060.76, 443,067.12 and 193,711.75 is: 267,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,060.76 : 443,067.12 = 193,711.75 : x
  2. Step 2: Convert to fraction form
    321,060.76/443,067.12 = 193,711.75/x
  3. Step 3: Cross multiply
    321,060.76x = 443,067.12 × 193,711.75
  4. Step 4: Simplify right side
    321,060.76x = 85,827,307,182.66
  5. Step 5: Solve for x
    x = 85,827,307,182.66/321,060.76
  6. Step 6: Final answer
    x = 267,324.19

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1.5x scale

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.