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Finding the Fourth Proportional to 179,778.62, 269,788.32 and 74,597.69

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Solution

The fourth proportional to 179,778.62, 269,788.32 and 74,597.69 is: 111,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,778.62 : 269,788.32 = 74,597.69 : x
  2. Step 2: Convert to fraction form
    179,778.62/269,788.32 = 74,597.69/x
  3. Step 3: Cross multiply
    179,778.62x = 269,788.32 × 74,597.69
  4. Step 4: Simplify right side
    179,778.62x = 20,125,586,135.45
  5. Step 5: Solve for x
    x = 20,125,586,135.45/179,778.62
  6. Step 6: Final answer
    x = 111,946.49

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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.