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Finding the Fourth Proportional to 279,950.82, 386,380.02 and 194,034.52

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Solution

The fourth proportional to 279,950.82, 386,380.02 and 194,034.52 is: 267,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,950.82 : 386,380.02 = 194,034.52 : x
  2. Step 2: Convert to fraction form
    279,950.82/386,380.02 = 194,034.52/x
  3. Step 3: Cross multiply
    279,950.82x = 386,380.02 × 194,034.52
  4. Step 4: Simplify right side
    279,950.82x = 74,971,061,718.29
  5. Step 5: Solve for x
    x = 74,971,061,718.29/279,950.82
  6. Step 6: Final answer
    x = 267,800.83

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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.