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Finding the Fourth Proportional to 80,647.83, 111,297.75 and 44,837.31

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Solution

The fourth proportional to 80,647.83, 111,297.75 and 44,837.31 is: 61,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,647.83 : 111,297.75 = 44,837.31 : x
  2. Step 2: Convert to fraction form
    80,647.83/111,297.75 = 44,837.31/x
  3. Step 3: Cross multiply
    80,647.83x = 111,297.75 × 44,837.31
  4. Step 4: Simplify right side
    80,647.83x = 4,990,291,719.05
  5. Step 5: Solve for x
    x = 4,990,291,719.05/80,647.83
  6. Step 6: Final answer
    x = 61,877.57

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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.