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Finding the Fourth Proportional to 69,879.84, 104,800.32 and 23,136.36

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Solution

The fourth proportional to 69,879.84, 104,800.32 and 23,136.36 is: 34,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.84 : 104,800.32 = 23,136.36 : x
  2. Step 2: Convert to fraction form
    69,879.84/104,800.32 = 23,136.36/x
  3. Step 3: Cross multiply
    69,879.84x = 104,800.32 × 23,136.36
  4. Step 4: Simplify right side
    69,879.84x = 2,424,697,931.64
  5. Step 5: Solve for x
    x = 2,424,697,931.64/69,879.84
  6. Step 6: Final answer
    x = 34,698.10

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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.