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Finding the Fourth Proportional to 41,159.52, 61,661.52 and 20,319.84

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Solution

The fourth proportional to 41,159.52, 61,661.52 and 20,319.84 is: 30,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,159.52 : 61,661.52 = 20,319.84 : x
  2. Step 2: Convert to fraction form
    41,159.52/61,661.52 = 20,319.84/x
  3. Step 3: Cross multiply
    41,159.52x = 61,661.52 × 20,319.84
  4. Step 4: Simplify right side
    41,159.52x = 1,252,952,220.56
  5. Step 5: Solve for x
    x = 1,252,952,220.56/41,159.52
  6. Step 6: Final answer
    x = 30,441.37

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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.