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Finding the Fourth Proportional to 69,436, 104,154.05 and 16,845.49

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Solution

The fourth proportional to 69,436, 104,154.05 and 16,845.49 is: 25,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,436 : 104,154.05 = 16,845.49 : x
  2. Step 2: Convert to fraction form
    69,436/104,154.05 = 16,845.49/x
  3. Step 3: Cross multiply
    69,436x = 104,154.05 × 16,845.49
  4. Step 4: Simplify right side
    69,436x = 1,754,526,007.73
  5. Step 5: Solve for x
    x = 1,754,526,007.73/69,436
  6. Step 6: Final answer
    x = 25,268.25

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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.