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Finding the Fourth Proportional to 69,235.84, 103,809.38 and 29,243.99

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Solution

The fourth proportional to 69,235.84, 103,809.38 and 29,243.99 is: 43,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,235.84 : 103,809.38 = 29,243.99 : x
  2. Step 2: Convert to fraction form
    69,235.84/103,809.38 = 29,243.99/x
  3. Step 3: Cross multiply
    69,235.84x = 103,809.38 × 29,243.99
  4. Step 4: Simplify right side
    69,235.84x = 3,035,800,470.63
  5. Step 5: Solve for x
    x = 3,035,800,470.63/69,235.84
  6. Step 6: Final answer
    x = 43,847.24

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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.