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Finding the Fourth Proportional to 73,147.44, 100,941.72 and 41,315.28

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Solution

The fourth proportional to 73,147.44, 100,941.72 and 41,315.28 is: 57,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,147.44 : 100,941.72 = 41,315.28 : x
  2. Step 2: Convert to fraction form
    73,147.44/100,941.72 = 41,315.28/x
  3. Step 3: Cross multiply
    73,147.44x = 100,941.72 × 41,315.28
  4. Step 4: Simplify right side
    73,147.44x = 4,170,435,425.48
  5. Step 5: Solve for x
    x = 4,170,435,425.48/73,147.44
  6. Step 6: Final answer
    x = 57,014.10

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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.