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Finding the Fourth Proportional to 411,610.73, 617,461.45 and 131,063.45

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Solution

The fourth proportional to 411,610.73, 617,461.45 and 131,063.45 is: 196,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,610.73 : 617,461.45 = 131,063.45 : x
  2. Step 2: Convert to fraction form
    411,610.73/617,461.45 = 131,063.45/x
  3. Step 3: Cross multiply
    411,610.73x = 617,461.45 × 131,063.45
  4. Step 4: Simplify right side
    411,610.73x = 80,926,624,464.04
  5. Step 5: Solve for x
    x = 80,926,624,464.04/411,610.73
  6. Step 6: Final answer
    x = 196,609.61

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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.