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Finding the Fourth Proportional to 298,736.46, 448,311.65 and 118,803.46

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Solution

The fourth proportional to 298,736.46, 448,311.65 and 118,803.46 is: 178,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,736.46 : 448,311.65 = 118,803.46 : x
  2. Step 2: Convert to fraction form
    298,736.46/448,311.65 = 118,803.46/x
  3. Step 3: Cross multiply
    298,736.46x = 448,311.65 × 118,803.46
  4. Step 4: Simplify right side
    298,736.46x = 53,260,974,057.53
  5. Step 5: Solve for x
    x = 53,260,974,057.53/298,736.46
  6. Step 6: Final answer
    x = 178,287.49

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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.