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Finding the Fourth Proportional to 69,744.63, 104,615.91 and 17,154.57

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Solution

The fourth proportional to 69,744.63, 104,615.91 and 17,154.57 is: 25,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,744.63 : 104,615.91 = 17,154.57 : x
  2. Step 2: Convert to fraction form
    69,744.63/104,615.91 = 17,154.57/x
  3. Step 3: Cross multiply
    69,744.63x = 104,615.91 × 17,154.57
  4. Step 4: Simplify right side
    69,744.63x = 1,794,640,951.21
  5. Step 5: Solve for x
    x = 1,794,640,951.21/69,744.63
  6. Step 6: Final answer
    x = 25,731.60

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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.