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Finding the Fourth Proportional to 298,628.66, 447,674.06 and 108,956.64

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Solution

The fourth proportional to 298,628.66, 447,674.06 and 108,956.64 is: 163,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,628.66 : 447,674.06 = 108,956.64 : x
  2. Step 2: Convert to fraction form
    298,628.66/447,674.06 = 108,956.64/x
  3. Step 3: Cross multiply
    298,628.66x = 447,674.06 × 108,956.64
  4. Step 4: Simplify right side
    298,628.66x = 48,777,061,392.76
  5. Step 5: Solve for x
    x = 48,777,061,392.76/298,628.66
  6. Step 6: Final answer
    x = 163,336.84

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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.