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Finding the Fourth Proportional to 66,641.96, 91,954.34 and 41,162.60

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Solution

The fourth proportional to 66,641.96, 91,954.34 and 41,162.60 is: 56,797.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.96 : 91,954.34 = 41,162.60 : x
  2. Step 2: Convert to fraction form
    66,641.96/91,954.34 = 41,162.60/x
  3. Step 3: Cross multiply
    66,641.96x = 91,954.34 × 41,162.60
  4. Step 4: Simplify right side
    66,641.96x = 3,785,079,715.68
  5. Step 5: Solve for x
    x = 3,785,079,715.68/66,641.96
  6. Step 6: Final answer
    x = 56,797.24

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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.