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Finding the Fourth Proportional to 69,855.01, 104,782.55 and 23,107.88

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Solution

The fourth proportional to 69,855.01, 104,782.55 and 23,107.88 is: 34,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,855.01 : 104,782.55 = 23,107.88 : x
  2. Step 2: Convert to fraction form
    69,855.01/104,782.55 = 23,107.88/x
  3. Step 3: Cross multiply
    69,855.01x = 104,782.55 × 23,107.88
  4. Step 4: Simplify right side
    69,855.01x = 2,421,302,737.91
  5. Step 5: Solve for x
    x = 2,421,302,737.91/69,855.01
  6. Step 6: Final answer
    x = 34,661.83

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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.