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Finding the Fourth Proportional to 89,103.87, 133,659.86 and 49,631.22

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Solution

The fourth proportional to 89,103.87, 133,659.86 and 49,631.22 is: 74,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,103.87 : 133,659.86 = 49,631.22 : x
  2. Step 2: Convert to fraction form
    89,103.87/133,659.86 = 49,631.22/x
  3. Step 3: Cross multiply
    89,103.87x = 133,659.86 × 49,631.22
  4. Step 4: Simplify right side
    89,103.87x = 6,633,701,668.67
  5. Step 5: Solve for x
    x = 6,633,701,668.67/89,103.87
  6. Step 6: Final answer
    x = 74,449.09

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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.