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Finding the Fourth Proportional to 66,899.48, 92,383.80 and 43,067.60

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Solution

The fourth proportional to 66,899.48, 92,383.80 and 43,067.60 is: 59,473.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899.48 : 92,383.80 = 43,067.60 : x
  2. Step 2: Convert to fraction form
    66,899.48/92,383.80 = 43,067.60/x
  3. Step 3: Cross multiply
    66,899.48x = 92,383.80 × 43,067.60
  4. Step 4: Simplify right side
    66,899.48x = 3,978,748,544.88
  5. Step 5: Solve for x
    x = 3,978,748,544.88/66,899.48
  6. Step 6: Final answer
    x = 59,473.53

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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.