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Finding the Fourth Proportional to 133,045.05, 199,626.03 and 69,850.49

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Solution

The fourth proportional to 133,045.05, 199,626.03 and 69,850.49 is: 104,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,045.05 : 199,626.03 = 69,850.49 : x
  2. Step 2: Convert to fraction form
    133,045.05/199,626.03 = 69,850.49/x
  3. Step 3: Cross multiply
    133,045.05x = 199,626.03 × 69,850.49
  4. Step 4: Simplify right side
    133,045.05x = 13,943,975,014.12
  5. Step 5: Solve for x
    x = 13,943,975,014.12/133,045.05
  6. Step 6: Final answer
    x = 104,806.42

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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.