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Finding the Fourth Proportional to 303,877.76, 419,355.74 and 167,914.85

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Solution

The fourth proportional to 303,877.76, 419,355.74 and 167,914.85 is: 231,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,877.76 : 419,355.74 = 167,914.85 : x
  2. Step 2: Convert to fraction form
    303,877.76/419,355.74 = 167,914.85/x
  3. Step 3: Cross multiply
    303,877.76x = 419,355.74 × 167,914.85
  4. Step 4: Simplify right side
    303,877.76x = 70,416,054,501.75
  5. Step 5: Solve for x
    x = 70,416,054,501.75/303,877.76
  6. Step 6: Final answer
    x = 231,724.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.