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Finding the Fourth Proportional to 69,902.74, 104,846.26 and 19,308.96

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Solution

The fourth proportional to 69,902.74, 104,846.26 and 19,308.96 is: 28,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,902.74 : 104,846.26 = 19,308.96 : x
  2. Step 2: Convert to fraction form
    69,902.74/104,846.26 = 19,308.96/x
  3. Step 3: Cross multiply
    69,902.74x = 104,846.26 × 19,308.96
  4. Step 4: Simplify right side
    69,902.74x = 2,024,472,192.22
  5. Step 5: Solve for x
    x = 2,024,472,192.22/69,902.74
  6. Step 6: Final answer
    x = 28,961.27

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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.