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Finding the Fourth Proportional to 66,745.81, 100,007.91 and 46,982.86

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Solution

The fourth proportional to 66,745.81, 100,007.91 and 46,982.86 is: 70,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,745.81 : 100,007.91 = 46,982.86 : x
  2. Step 2: Convert to fraction form
    66,745.81/100,007.91 = 46,982.86/x
  3. Step 3: Cross multiply
    66,745.81x = 100,007.91 × 46,982.86
  4. Step 4: Simplify right side
    66,745.81x = 4,698,657,634.42
  5. Step 5: Solve for x
    x = 4,698,657,634.42/66,745.81
  6. Step 6: Final answer
    x = 70,396.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.