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Finding the Fourth Proportional to 66,883.36, 92,308.44 and 41,397.90

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Solution

The fourth proportional to 66,883.36, 92,308.44 and 41,397.90 is: 57,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883.36 : 92,308.44 = 41,397.90 : x
  2. Step 2: Convert to fraction form
    66,883.36/92,308.44 = 41,397.90/x
  3. Step 3: Cross multiply
    66,883.36x = 92,308.44 × 41,397.90
  4. Step 4: Simplify right side
    66,883.36x = 3,821,375,568.28
  5. Step 5: Solve for x
    x = 3,821,375,568.28/66,883.36
  6. Step 6: Final answer
    x = 57,134.92

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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.