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Finding the Fourth Proportional to 208,891.86, 288,396.42 and 196,936.26

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Solution

The fourth proportional to 208,891.86, 288,396.42 and 196,936.26 is: 271,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,891.86 : 288,396.42 = 196,936.26 : x
  2. Step 2: Convert to fraction form
    208,891.86/288,396.42 = 196,936.26/x
  3. Step 3: Cross multiply
    208,891.86x = 288,396.42 × 196,936.26
  4. Step 4: Simplify right side
    208,891.86x = 56,795,712,352.19
  5. Step 5: Solve for x
    x = 56,795,712,352.19/208,891.86
  6. Step 6: Final answer
    x = 271,890.50

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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.