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Finding the Fourth Proportional to 66,576.84, 91,795.38 and 43,908.58

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Solution

The fourth proportional to 66,576.84, 91,795.38 and 43,908.58 is: 60,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.84 : 91,795.38 = 43,908.58 : x
  2. Step 2: Convert to fraction form
    66,576.84/91,795.38 = 43,908.58/x
  3. Step 3: Cross multiply
    66,576.84x = 91,795.38 × 43,908.58
  4. Step 4: Simplify right side
    66,576.84x = 4,030,604,736.45
  5. Step 5: Solve for x
    x = 4,030,604,736.45/66,576.84
  6. Step 6: Final answer
    x = 60,540.65

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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.