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Finding the Fourth Proportional to 100,683.44, 150,696.45 and 74,022.39

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Solution

The fourth proportional to 100,683.44, 150,696.45 and 74,022.39 is: 110,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,683.44 : 150,696.45 = 74,022.39 : x
  2. Step 2: Convert to fraction form
    100,683.44/150,696.45 = 74,022.39/x
  3. Step 3: Cross multiply
    100,683.44x = 150,696.45 × 74,022.39
  4. Step 4: Simplify right side
    100,683.44x = 11,154,911,393.52
  5. Step 5: Solve for x
    x = 11,154,911,393.52/100,683.44
  6. Step 6: Final answer
    x = 110,791.92

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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.