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Finding the Fourth Proportional to 69,985.69, 104,957.00 and 20,052.41

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Solution

The fourth proportional to 69,985.69, 104,957.00 and 20,052.41 is: 30,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,985.69 : 104,957.00 = 20,052.41 : x
  2. Step 2: Convert to fraction form
    69,985.69/104,957.00 = 20,052.41/x
  3. Step 3: Cross multiply
    69,985.69x = 104,957.00 × 20,052.41
  4. Step 4: Simplify right side
    69,985.69x = 2,104,640,584.11
  5. Step 5: Solve for x
    x = 2,104,640,584.11/69,985.69
  6. Step 6: Final answer
    x = 30,072.44

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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.