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Finding the Fourth Proportional to 69,866.44, 104,803.44 and 19,942.72

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Solution

The fourth proportional to 69,866.44, 104,803.44 and 19,942.72 is: 29,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,866.44 : 104,803.44 = 19,942.72 : x
  2. Step 2: Convert to fraction form
    69,866.44/104,803.44 = 19,942.72/x
  3. Step 3: Cross multiply
    69,866.44x = 104,803.44 × 19,942.72
  4. Step 4: Simplify right side
    69,866.44x = 2,090,065,658.96
  5. Step 5: Solve for x
    x = 2,090,065,658.96/69,866.44
  6. Step 6: Final answer
    x = 29,915.16

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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.