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Finding the Fourth Proportional to 69,919.65, 104,762.84 and 49,105.89

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Solution

The fourth proportional to 69,919.65, 104,762.84 and 49,105.89 is: 73,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.65 : 104,762.84 = 49,105.89 : x
  2. Step 2: Convert to fraction form
    69,919.65/104,762.84 = 49,105.89/x
  3. Step 3: Cross multiply
    69,919.65x = 104,762.84 × 49,105.89
  4. Step 4: Simplify right side
    69,919.65x = 5,144,472,251.60
  5. Step 5: Solve for x
    x = 5,144,472,251.60/69,919.65
  6. Step 6: Final answer
    x = 73,576.92

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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.