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Finding the Fourth Proportional to 66,136.92, 91,269.24 and 35,922.48

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Solution

The fourth proportional to 66,136.92, 91,269.24 and 35,922.48 is: 49,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,136.92 : 91,269.24 = 35,922.48 : x
  2. Step 2: Convert to fraction form
    66,136.92/91,269.24 = 35,922.48/x
  3. Step 3: Cross multiply
    66,136.92x = 91,269.24 × 35,922.48
  4. Step 4: Simplify right side
    66,136.92x = 3,278,617,448.52
  5. Step 5: Solve for x
    x = 3,278,617,448.52/66,136.92
  6. Step 6: Final answer
    x = 49,573.18

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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.