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Finding the Fourth Proportional to 72,476.44, 100,028.42 and 44,198.53

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Solution

The fourth proportional to 72,476.44, 100,028.42 and 44,198.53 is: 61,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,476.44 : 100,028.42 = 44,198.53 : x
  2. Step 2: Convert to fraction form
    72,476.44/100,028.42 = 44,198.53/x
  3. Step 3: Cross multiply
    72,476.44x = 100,028.42 × 44,198.53
  4. Step 4: Simplify right side
    72,476.44x = 4,421,108,816.90
  5. Step 5: Solve for x
    x = 4,421,108,816.90/72,476.44
  6. Step 6: Final answer
    x = 61,000.64

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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.