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Finding the Fourth Proportional to 69,578.00, 104,373.84 and 19,658.49

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Solution

The fourth proportional to 69,578.00, 104,373.84 and 19,658.49 is: 29,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,578.00 : 104,373.84 = 19,658.49 : x
  2. Step 2: Convert to fraction form
    69,578.00/104,373.84 = 19,658.49/x
  3. Step 3: Cross multiply
    69,578.00x = 104,373.84 × 19,658.49
  4. Step 4: Simplify right side
    69,578.00x = 2,051,832,089.90
  5. Step 5: Solve for x
    x = 2,051,832,089.90/69,578.00
  6. Step 6: Final answer
    x = 29,489.67

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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.