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Finding the Fourth Proportional to 297,185.06, 445,776.05 and 72,546.68

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Solution

The fourth proportional to 297,185.06, 445,776.05 and 72,546.68 is: 108,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,185.06 : 445,776.05 = 72,546.68 : x
  2. Step 2: Convert to fraction form
    297,185.06/445,776.05 = 72,546.68/x
  3. Step 3: Cross multiply
    297,185.06x = 445,776.05 × 72,546.68
  4. Step 4: Simplify right side
    297,185.06x = 32,339,569,859.40
  5. Step 5: Solve for x
    x = 32,339,569,859.40/297,185.06
  6. Step 6: Final answer
    x = 108,819.64

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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.