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Finding the Fourth Proportional to 100,680.80, 151,039.41 and 41,483.54

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Solution

The fourth proportional to 100,680.80, 151,039.41 and 41,483.54 is: 62,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,680.80 : 151,039.41 = 41,483.54 : x
  2. Step 2: Convert to fraction form
    100,680.80/151,039.41 = 41,483.54/x
  3. Step 3: Cross multiply
    100,680.80x = 151,039.41 × 41,483.54
  4. Step 4: Simplify right side
    100,680.80x = 6,265,649,406.31
  5. Step 5: Solve for x
    x = 6,265,649,406.31/100,680.80
  6. Step 6: Final answer
    x = 62,232.81

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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.