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Finding the Fourth Proportional to 69,708.99, 104,504.71 and 30,236.39

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Solution

The fourth proportional to 69,708.99, 104,504.71 and 30,236.39 is: 45,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.99 : 104,504.71 = 30,236.39 : x
  2. Step 2: Convert to fraction form
    69,708.99/104,504.71 = 30,236.39/x
  3. Step 3: Cross multiply
    69,708.99x = 104,504.71 × 30,236.39
  4. Step 4: Simplify right side
    69,708.99x = 3,159,845,168.40
  5. Step 5: Solve for x
    x = 3,159,845,168.40/69,708.99
  6. Step 6: Final answer
    x = 45,329.09

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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.