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Finding the Fourth Proportional to 69,760.60, 104,468.10 and 55,936.60

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Solution

The fourth proportional to 69,760.60, 104,468.10 and 55,936.60 is: 83,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,760.60 : 104,468.10 = 55,936.60 : x
  2. Step 2: Convert to fraction form
    69,760.60/104,468.10 = 55,936.60/x
  3. Step 3: Cross multiply
    69,760.60x = 104,468.10 × 55,936.60
  4. Step 4: Simplify right side
    69,760.60x = 5,843,590,322.46
  5. Step 5: Solve for x
    x = 5,843,590,322.46/69,760.60
  6. Step 6: Final answer
    x = 83,766.34

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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.