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Finding the Fourth Proportional to 275,717.66, 412,995.24 and 126,083.86

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Solution

The fourth proportional to 275,717.66, 412,995.24 and 126,083.86 is: 188,859.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,717.66 : 412,995.24 = 126,083.86 : x
  2. Step 2: Convert to fraction form
    275,717.66/412,995.24 = 126,083.86/x
  3. Step 3: Cross multiply
    275,717.66x = 412,995.24 × 126,083.86
  4. Step 4: Simplify right side
    275,717.66x = 52,072,032,988.34
  5. Step 5: Solve for x
    x = 52,072,032,988.34/275,717.66
  6. Step 6: Final answer
    x = 188,859.99

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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.