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Finding the Fourth Proportional to 69,833.99, 104,757.15 and 19,913.01

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Solution

The fourth proportional to 69,833.99, 104,757.15 and 19,913.01 is: 29,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,833.99 : 104,757.15 = 19,913.01 : x
  2. Step 2: Convert to fraction form
    69,833.99/104,757.15 = 19,913.01/x
  3. Step 3: Cross multiply
    69,833.99x = 104,757.15 × 19,913.01
  4. Step 4: Simplify right side
    69,833.99x = 2,086,030,175.52
  5. Step 5: Solve for x
    x = 2,086,030,175.52/69,833.99
  6. Step 6: Final answer
    x = 29,871.28

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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.