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Finding the Fourth Proportional to 69,896.21, 104,860.71 and 23,149.10

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Solution

The fourth proportional to 69,896.21, 104,860.71 and 23,149.10 is: 34,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,896.21 : 104,860.71 = 23,149.10 : x
  2. Step 2: Convert to fraction form
    69,896.21/104,860.71 = 23,149.10/x
  3. Step 3: Cross multiply
    69,896.21x = 104,860.71 × 23,149.10
  4. Step 4: Simplify right side
    69,896.21x = 2,427,431,061.86
  5. Step 5: Solve for x
    x = 2,427,431,061.86/69,896.21
  6. Step 6: Final answer
    x = 34,729.08

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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.