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Finding the Fourth Proportional to 196,511.80, 294,656.97 and 68,369.32

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Solution

The fourth proportional to 196,511.80, 294,656.97 and 68,369.32 is: 102,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,511.80 : 294,656.97 = 68,369.32 : x
  2. Step 2: Convert to fraction form
    196,511.80/294,656.97 = 68,369.32/x
  3. Step 3: Cross multiply
    196,511.80x = 294,656.97 × 68,369.32
  4. Step 4: Simplify right side
    196,511.80x = 20,145,496,672.16
  5. Step 5: Solve for x
    x = 20,145,496,672.16/196,511.80
  6. Step 6: Final answer
    x = 102,515.46

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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.