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Finding the Fourth Proportional to 264,172.24, 396,274.83 and 74,647.12

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Solution

The fourth proportional to 264,172.24, 396,274.83 and 74,647.12 is: 111,975.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,172.24 : 396,274.83 = 74,647.12 : x
  2. Step 2: Convert to fraction form
    264,172.24/396,274.83 = 74,647.12/x
  3. Step 3: Cross multiply
    264,172.24x = 396,274.83 × 74,647.12
  4. Step 4: Simplify right side
    264,172.24x = 29,580,774,680.28
  5. Step 5: Solve for x
    x = 29,580,774,680.28/264,172.24
  6. Step 6: Final answer
    x = 111,975.34

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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.