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Finding the Fourth Proportional to 230,879.80, 346,352.10 and 73,091.80

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Solution

The fourth proportional to 230,879.80, 346,352.10 and 73,091.80 is: 109,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,879.80 : 346,352.10 = 73,091.80 : x
  2. Step 2: Convert to fraction form
    230,879.80/346,352.10 = 73,091.80/x
  3. Step 3: Cross multiply
    230,879.80x = 346,352.10 × 73,091.80
  4. Step 4: Simplify right side
    230,879.80x = 25,315,498,422.78
  5. Step 5: Solve for x
    x = 25,315,498,422.78/230,879.80
  6. Step 6: Final answer
    x = 109,647.96

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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.