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Finding the Fourth Proportional to 66,546.64, 91,764.44 and 43,856.60

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Solution

The fourth proportional to 66,546.64, 91,764.44 and 43,856.60 is: 60,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.64 : 91,764.44 = 43,856.60 : x
  2. Step 2: Convert to fraction form
    66,546.64/91,764.44 = 43,856.60/x
  3. Step 3: Cross multiply
    66,546.64x = 91,764.44 × 43,856.60
  4. Step 4: Simplify right side
    66,546.64x = 4,024,476,717.57
  5. Step 5: Solve for x
    x = 4,024,476,717.57/66,546.64
  6. Step 6: Final answer
    x = 60,476.03

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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.