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Finding the Fourth Proportional to 135,379.63, 203,069.85 and 46,631.98

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Solution

The fourth proportional to 135,379.63, 203,069.85 and 46,631.98 is: 69,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,379.63 : 203,069.85 = 46,631.98 : x
  2. Step 2: Convert to fraction form
    135,379.63/203,069.85 = 46,631.98/x
  3. Step 3: Cross multiply
    135,379.63x = 203,069.85 × 46,631.98
  4. Step 4: Simplify right side
    135,379.63x = 9,469,549,183.80
  5. Step 5: Solve for x
    x = 9,469,549,183.80/135,379.63
  6. Step 6: Final answer
    x = 69,948.11

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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.