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Finding the Fourth Proportional to 66,136.71, 91,269.61 and 35,922.09

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Solution

The fourth proportional to 66,136.71, 91,269.61 and 35,922.09 is: 49,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,136.71 : 91,269.61 = 35,922.09 : x
  2. Step 2: Convert to fraction form
    66,136.71/91,269.61 = 35,922.09/x
  3. Step 3: Cross multiply
    66,136.71x = 91,269.61 × 35,922.09
  4. Step 4: Simplify right side
    66,136.71x = 3,278,595,054.88
  5. Step 5: Solve for x
    x = 3,278,595,054.88/66,136.71
  6. Step 6: Final answer
    x = 49,573.00

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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.