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Finding the Fourth Proportional to 224,455.86, 336,571.20 and 74,643.39

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Solution

The fourth proportional to 224,455.86, 336,571.20 and 74,643.39 is: 111,927.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,455.86 : 336,571.20 = 74,643.39 : x
  2. Step 2: Convert to fraction form
    224,455.86/336,571.20 = 74,643.39/x
  3. Step 3: Cross multiply
    224,455.86x = 336,571.20 × 74,643.39
  4. Step 4: Simplify right side
    224,455.86x = 25,122,815,344.37
  5. Step 5: Solve for x
    x = 25,122,815,344.37/224,455.86
  6. Step 6: Final answer
    x = 111,927.64

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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.