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Finding the Fourth Proportional to 71,269.20, 98,361.90 and 41,048.64

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Solution

The fourth proportional to 71,269.20, 98,361.90 and 41,048.64 is: 56,653.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,269.20 : 98,361.90 = 41,048.64 : x
  2. Step 2: Convert to fraction form
    71,269.20/98,361.90 = 41,048.64/x
  3. Step 3: Cross multiply
    71,269.20x = 98,361.90 × 41,048.64
  4. Step 4: Simplify right side
    71,269.20x = 4,037,622,222.82
  5. Step 5: Solve for x
    x = 4,037,622,222.82/71,269.20
  6. Step 6: Final answer
    x = 56,653.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.