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Finding the Fourth Proportional to 296,860.82, 445,403.31 and 178,615.19

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Solution

The fourth proportional to 296,860.82, 445,403.31 and 178,615.19 is: 267,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,860.82 : 445,403.31 = 178,615.19 : x
  2. Step 2: Convert to fraction form
    296,860.82/445,403.31 = 178,615.19/x
  3. Step 3: Cross multiply
    296,860.82x = 445,403.31 × 178,615.19
  4. Step 4: Simplify right side
    296,860.82x = 79,555,797,285.98
  5. Step 5: Solve for x
    x = 79,555,797,285.98/296,860.82
  6. Step 6: Final answer
    x = 267,990.23

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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.