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Finding the Fourth Proportional to 445,197.92, 667,827.40 and 178,958.64

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Solution

The fourth proportional to 445,197.92, 667,827.40 and 178,958.64 is: 268,450.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,197.92 : 667,827.40 = 178,958.64 : x
  2. Step 2: Convert to fraction form
    445,197.92/667,827.40 = 178,958.64/x
  3. Step 3: Cross multiply
    445,197.92x = 667,827.40 × 178,958.64
  4. Step 4: Simplify right side
    445,197.92x = 119,513,483,258.74
  5. Step 5: Solve for x
    x = 119,513,483,258.74/445,197.92
  6. Step 6: Final answer
    x = 268,450.23

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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.