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Finding the Fourth Proportional to 263,892.58, 395,807.28 and 74,367.16

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Solution

The fourth proportional to 263,892.58, 395,807.28 and 74,367.16 is: 111,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,892.58 : 395,807.28 = 74,367.16 : x
  2. Step 2: Convert to fraction form
    263,892.58/395,807.28 = 74,367.16/x
  3. Step 3: Cross multiply
    263,892.58x = 395,807.28 × 74,367.16
  4. Step 4: Simplify right side
    263,892.58x = 29,435,063,320.92
  5. Step 5: Solve for x
    x = 29,435,063,320.92/263,892.58
  6. Step 6: Final answer
    x = 111,541.84

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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.