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Finding the Fourth Proportional to 81,993.48, 122,911.79 and 32,056.98

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Solution

The fourth proportional to 81,993.48, 122,911.79 and 32,056.98 is: 48,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,993.48 : 122,911.79 = 32,056.98 : x
  2. Step 2: Convert to fraction form
    81,993.48/122,911.79 = 32,056.98/x
  3. Step 3: Cross multiply
    81,993.48x = 122,911.79 × 32,056.98
  4. Step 4: Simplify right side
    81,993.48x = 3,940,180,633.51
  5. Step 5: Solve for x
    x = 3,940,180,633.51/81,993.48
  6. Step 6: Final answer
    x = 48,054.80

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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.