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Finding the Fourth Proportional to 264,463.44, 396,619.80 and 74,911.28

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Solution

The fourth proportional to 264,463.44, 396,619.80 and 74,911.28 is: 112,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,463.44 : 396,619.80 = 74,911.28 : x
  2. Step 2: Convert to fraction form
    264,463.44/396,619.80 = 74,911.28/x
  3. Step 3: Cross multiply
    264,463.44x = 396,619.80 × 74,911.28
  4. Step 4: Simplify right side
    264,463.44x = 29,711,296,891.34
  5. Step 5: Solve for x
    x = 29,711,296,891.34/264,463.44
  6. Step 6: Final answer
    x = 112,345.57

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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.