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Finding the Fourth Proportional to 69,515.94, 104,257.90 and 41,443.90

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Solution

The fourth proportional to 69,515.94, 104,257.90 and 41,443.90 is: 62,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,515.94 : 104,257.90 = 41,443.90 : x
  2. Step 2: Convert to fraction form
    69,515.94/104,257.90 = 41,443.90/x
  3. Step 3: Cross multiply
    69,515.94x = 104,257.90 × 41,443.90
  4. Step 4: Simplify right side
    69,515.94x = 4,320,853,981.81
  5. Step 5: Solve for x
    x = 4,320,853,981.81/69,515.94
  6. Step 6: Final answer
    x = 62,156.31

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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.