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Finding the Fourth Proportional to 100,924.87, 151,274.16 and 40,939.41

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Solution

The fourth proportional to 100,924.87, 151,274.16 and 40,939.41 is: 61,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,924.87 : 151,274.16 = 40,939.41 : x
  2. Step 2: Convert to fraction form
    100,924.87/151,274.16 = 40,939.41/x
  3. Step 3: Cross multiply
    100,924.87x = 151,274.16 × 40,939.41
  4. Step 4: Simplify right side
    100,924.87x = 6,193,074,858.65
  5. Step 5: Solve for x
    x = 6,193,074,858.65/100,924.87
  6. Step 6: Final answer
    x = 61,363.22

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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.