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Finding the Fourth Proportional to 80,799.60, 111,508.04 and 48,544.08

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Solution

The fourth proportional to 80,799.60, 111,508.04 and 48,544.08 is: 66,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,799.60 : 111,508.04 = 48,544.08 : x
  2. Step 2: Convert to fraction form
    80,799.60/111,508.04 = 48,544.08/x
  3. Step 3: Cross multiply
    80,799.60x = 111,508.04 × 48,544.08
  4. Step 4: Simplify right side
    80,799.60x = 5,413,054,971.68
  5. Step 5: Solve for x
    x = 5,413,054,971.68/80,799.60
  6. Step 6: Final answer
    x = 66,993.59

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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.