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Finding the Fourth Proportional to 66,790.88, 92,076.42 and 41,282.82

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Solution

The fourth proportional to 66,790.88, 92,076.42 and 41,282.82 is: 56,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,790.88 : 92,076.42 = 41,282.82 : x
  2. Step 2: Convert to fraction form
    66,790.88/92,076.42 = 41,282.82/x
  3. Step 3: Cross multiply
    66,790.88x = 92,076.42 × 41,282.82
  4. Step 4: Simplify right side
    66,790.88x = 3,801,174,273.10
  5. Step 5: Solve for x
    x = 3,801,174,273.10/66,790.88
  6. Step 6: Final answer
    x = 56,911.58

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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.