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Finding the Fourth Proportional to 279,006.88, 418,379.07 and 194,862.05

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Solution

The fourth proportional to 279,006.88, 418,379.07 and 194,862.05 is: 292,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,006.88 : 418,379.07 = 194,862.05 : x
  2. Step 2: Convert to fraction form
    279,006.88/418,379.07 = 194,862.05/x
  3. Step 3: Cross multiply
    279,006.88x = 418,379.07 × 194,862.05
  4. Step 4: Simplify right side
    279,006.88x = 81,526,202,282.98
  5. Step 5: Solve for x
    x = 81,526,202,282.98/279,006.88
  6. Step 6: Final answer
    x = 292,201.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.