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Finding the Fourth Proportional to 95,647.80, 131,990.94 and 53,205.96

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Solution

The fourth proportional to 95,647.80, 131,990.94 and 53,205.96 is: 73,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,647.80 : 131,990.94 = 53,205.96 : x
  2. Step 2: Convert to fraction form
    95,647.80/131,990.94 = 53,205.96/x
  3. Step 3: Cross multiply
    95,647.80x = 131,990.94 × 53,205.96
  4. Step 4: Simplify right side
    95,647.80x = 7,022,704,674.00
  5. Step 5: Solve for x
    x = 7,022,704,674.00/95,647.80
  6. Step 6: Final answer
    x = 73,422.54

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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.