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Finding the Fourth Proportional to 80,484.78, 111,063.78 and 44,674.80

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Solution

The fourth proportional to 80,484.78, 111,063.78 and 44,674.80 is: 61,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,484.78 : 111,063.78 = 44,674.80 : x
  2. Step 2: Convert to fraction form
    80,484.78/111,063.78 = 44,674.80/x
  3. Step 3: Cross multiply
    80,484.78x = 111,063.78 × 44,674.80
  4. Step 4: Simplify right side
    80,484.78x = 4,961,752,158.74
  5. Step 5: Solve for x
    x = 4,961,752,158.74/80,484.78
  6. Step 6: Final answer
    x = 61,648.33

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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.