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Finding the Fourth Proportional to 80,491.65, 111,072.91 and 44,678.84

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Solution

The fourth proportional to 80,491.65, 111,072.91 and 44,678.84 is: 61,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,491.65 : 111,072.91 = 44,678.84 : x
  2. Step 2: Convert to fraction form
    80,491.65/111,072.91 = 44,678.84/x
  3. Step 3: Cross multiply
    80,491.65x = 111,072.91 × 44,678.84
  4. Step 4: Simplify right side
    80,491.65x = 4,962,608,774.22
  5. Step 5: Solve for x
    x = 4,962,608,774.22/80,491.65
  6. Step 6: Final answer
    x = 61,653.71

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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.