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Finding the Fourth Proportional to 69,503.95, 104,239.89 and 41,431.90

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Solution

The fourth proportional to 69,503.95, 104,239.89 and 41,431.90 is: 62,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.95 : 104,239.89 = 41,431.90 : x
  2. Step 2: Convert to fraction form
    69,503.95/104,239.89 = 41,431.90/x
  3. Step 3: Cross multiply
    69,503.95x = 104,239.89 × 41,431.90
  4. Step 4: Simplify right side
    69,503.95x = 4,318,856,698.49
  5. Step 5: Solve for x
    x = 4,318,856,698.49/69,503.95
  6. Step 6: Final answer
    x = 62,138.29

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1.5x scale

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.