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Finding the Fourth Proportional to 69,224.42, 103,880.37 and 39,699.92

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Solution

The fourth proportional to 69,224.42, 103,880.37 and 39,699.92 is: 59,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,224.42 : 103,880.37 = 39,699.92 : x
  2. Step 2: Convert to fraction form
    69,224.42/103,880.37 = 39,699.92/x
  3. Step 3: Cross multiply
    69,224.42x = 103,880.37 × 39,699.92
  4. Step 4: Simplify right side
    69,224.42x = 4,124,042,787.15
  5. Step 5: Solve for x
    x = 4,124,042,787.15/69,224.42
  6. Step 6: Final answer
    x = 59,574.97

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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.