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Finding the Fourth Proportional to 77,906.40, 116,816.40 and 33,525.60

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Solution

The fourth proportional to 77,906.40, 116,816.40 and 33,525.60 is: 50,269.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,906.40 : 116,816.40 = 33,525.60 : x
  2. Step 2: Convert to fraction form
    77,906.40/116,816.40 = 33,525.60/x
  3. Step 3: Cross multiply
    77,906.40x = 116,816.40 × 33,525.60
  4. Step 4: Simplify right side
    77,906.40x = 3,916,339,899.84
  5. Step 5: Solve for x
    x = 3,916,339,899.84/77,906.40
  6. Step 6: Final answer
    x = 50,269.81

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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.