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Finding the Fourth Proportional to 66,537.56, 91,837.27 and 43,880.64

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Solution

The fourth proportional to 66,537.56, 91,837.27 and 43,880.64 is: 60,565.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,537.56 : 91,837.27 = 43,880.64 : x
  2. Step 2: Convert to fraction form
    66,537.56/91,837.27 = 43,880.64/x
  3. Step 3: Cross multiply
    66,537.56x = 91,837.27 × 43,880.64
  4. Step 4: Simplify right side
    66,537.56x = 4,029,878,183.45
  5. Step 5: Solve for x
    x = 4,029,878,183.45/66,537.56
  6. Step 6: Final answer
    x = 60,565.46

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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.