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Finding the Fourth Proportional to 372,878.54, 514,575.86 and 211,736.94

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Solution

The fourth proportional to 372,878.54, 514,575.86 and 211,736.94 is: 292,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,878.54 : 514,575.86 = 211,736.94 : x
  2. Step 2: Convert to fraction form
    372,878.54/514,575.86 = 211,736.94/x
  3. Step 3: Cross multiply
    372,878.54x = 514,575.86 × 211,736.94
  4. Step 4: Simplify right side
    372,878.54x = 108,954,715,005.92
  5. Step 5: Solve for x
    x = 108,954,715,005.92/372,878.54
  6. Step 6: Final answer
    x = 292,198.94

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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.