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Finding the Fourth Proportional to 297,192.07, 445,786.54 and 72,553.69

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Solution

The fourth proportional to 297,192.07, 445,786.54 and 72,553.69 is: 108,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,192.07 : 445,786.54 = 72,553.69 : x
  2. Step 2: Convert to fraction form
    297,192.07/445,786.54 = 72,553.69/x
  3. Step 3: Cross multiply
    297,192.07x = 445,786.54 × 72,553.69
  4. Step 4: Simplify right side
    297,192.07x = 32,343,458,429.33
  5. Step 5: Solve for x
    x = 32,343,458,429.33/297,192.07
  6. Step 6: Final answer
    x = 108,830.15

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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.