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Finding the Fourth Proportional to 216,046.80, 298,198.02 and 131,234.94

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Solution

The fourth proportional to 216,046.80, 298,198.02 and 131,234.94 is: 181,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,046.80 : 298,198.02 = 131,234.94 : x
  2. Step 2: Convert to fraction form
    216,046.80/298,198.02 = 131,234.94/x
  3. Step 3: Cross multiply
    216,046.80x = 298,198.02 × 131,234.94
  4. Step 4: Simplify right side
    216,046.80x = 39,133,999,262.82
  5. Step 5: Solve for x
    x = 39,133,999,262.82/216,046.80
  6. Step 6: Final answer
    x = 181,136.68

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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.