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Finding the Fourth Proportional to 322,744.08, 445,384.32 and 177,546.72

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Solution

The fourth proportional to 322,744.08, 445,384.32 and 177,546.72 is: 245,013.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,744.08 : 445,384.32 = 177,546.72 : x
  2. Step 2: Convert to fraction form
    322,744.08/445,384.32 = 177,546.72/x
  3. Step 3: Cross multiply
    322,744.08x = 445,384.32 × 177,546.72
  4. Step 4: Simplify right side
    322,744.08x = 79,076,525,155.43
  5. Step 5: Solve for x
    x = 79,076,525,155.43/322,744.08
  6. Step 6: Final answer
    x = 245,013.09

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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.