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Finding the Fourth Proportional to 69,418.63, 104,131.98 and 19,502.62

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Solution

The fourth proportional to 69,418.63, 104,131.98 and 19,502.62 is: 29,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,418.63 : 104,131.98 = 19,502.62 : x
  2. Step 2: Convert to fraction form
    69,418.63/104,131.98 = 19,502.62/x
  3. Step 3: Cross multiply
    69,418.63x = 104,131.98 × 19,502.62
  4. Step 4: Simplify right side
    69,418.63x = 2,030,845,860.37
  5. Step 5: Solve for x
    x = 2,030,845,860.37/69,418.63
  6. Step 6: Final answer
    x = 29,255.06

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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.