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Finding the Fourth Proportional to 264,175.49, 396,279.71 and 74,650.38

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Solution

The fourth proportional to 264,175.49, 396,279.71 and 74,650.38 is: 111,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,175.49 : 396,279.71 = 74,650.38 : x
  2. Step 2: Convert to fraction form
    264,175.49/396,279.71 = 74,650.38/x
  3. Step 3: Cross multiply
    264,175.49x = 396,279.71 × 74,650.38
  4. Step 4: Simplify right side
    264,175.49x = 29,582,430,937.79
  5. Step 5: Solve for x
    x = 29,582,430,937.79/264,175.49
  6. Step 6: Final answer
    x = 111,980.23

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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.