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Finding the Fourth Proportional to 66,249.46, 91,415.94 and 44,785.90

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Solution

The fourth proportional to 66,249.46, 91,415.94 and 44,785.90 is: 61,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249.46 : 91,415.94 = 44,785.90 : x
  2. Step 2: Convert to fraction form
    66,249.46/91,415.94 = 44,785.90/x
  3. Step 3: Cross multiply
    66,249.46x = 91,415.94 × 44,785.90
  4. Step 4: Simplify right side
    66,249.46x = 4,094,145,147.25
  5. Step 5: Solve for x
    x = 4,094,145,147.25/66,249.46
  6. Step 6: Final answer
    x = 61,798.93

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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.