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Finding the Fourth Proportional to 196,488.25, 294,485.90 and 84,036.49

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Solution

The fourth proportional to 196,488.25, 294,485.90 and 84,036.49 is: 125,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,488.25 : 294,485.90 = 84,036.49 : x
  2. Step 2: Convert to fraction form
    196,488.25/294,485.90 = 84,036.49/x
  3. Step 3: Cross multiply
    196,488.25x = 294,485.90 × 84,036.49
  4. Step 4: Simplify right side
    196,488.25x = 24,747,560,234.09
  5. Step 5: Solve for x
    x = 24,747,560,234.09/196,488.25
  6. Step 6: Final answer
    x = 125,949.32

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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.