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Finding the Fourth Proportional to 66,046.41, 91,179.41 and 50,905.89

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Solution

The fourth proportional to 66,046.41, 91,179.41 and 50,905.89 is: 70,277.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,046.41 : 91,179.41 = 50,905.89 : x
  2. Step 2: Convert to fraction form
    66,046.41/91,179.41 = 50,905.89/x
  3. Step 3: Cross multiply
    66,046.41x = 91,179.41 × 50,905.89
  4. Step 4: Simplify right side
    66,046.41x = 4,641,569,015.72
  5. Step 5: Solve for x
    x = 4,641,569,015.72/66,046.41
  6. Step 6: Final answer
    x = 70,277.39

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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.