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Finding the Fourth Proportional to 103,367.28, 154,843.32 and 47,130.03

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Solution

The fourth proportional to 103,367.28, 154,843.32 and 47,130.03 is: 70,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,367.28 : 154,843.32 = 47,130.03 : x
  2. Step 2: Convert to fraction form
    103,367.28/154,843.32 = 47,130.03/x
  3. Step 3: Cross multiply
    103,367.28x = 154,843.32 × 47,130.03
  4. Step 4: Simplify right side
    103,367.28x = 7,297,770,316.90
  5. Step 5: Solve for x
    x = 7,297,770,316.90/103,367.28
  6. Step 6: Final answer
    x = 70,600.39

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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.