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Finding the Fourth Proportional to 66,179, 91,327.02 and 36,371.64

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Solution

The fourth proportional to 66,179, 91,327.02 and 36,371.64 is: 50,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,179 : 91,327.02 = 36,371.64 : x
  2. Step 2: Convert to fraction form
    66,179/91,327.02 = 36,371.64/x
  3. Step 3: Cross multiply
    66,179x = 91,327.02 × 36,371.64
  4. Step 4: Simplify right side
    66,179x = 3,321,713,493.71
  5. Step 5: Solve for x
    x = 3,321,713,493.71/66,179
  6. Step 6: Final answer
    x = 50,192.86

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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.