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Finding the Fourth Proportional to 69,503.44, 104,239.14 and 41,431.40

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Solution

The fourth proportional to 69,503.44, 104,239.14 and 41,431.40 is: 62,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.44 : 104,239.14 = 41,431.40 : x
  2. Step 2: Convert to fraction form
    69,503.44/104,239.14 = 41,431.40/x
  3. Step 3: Cross multiply
    69,503.44x = 104,239.14 × 41,431.40
  4. Step 4: Simplify right side
    69,503.44x = 4,318,773,505.00
  5. Step 5: Solve for x
    x = 4,318,773,505.00/69,503.44
  6. Step 6: Final answer
    x = 62,137.55

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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.