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Finding the Fourth Proportional to 372,792.39, 514,468.05 and 211,662.43

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Solution

The fourth proportional to 372,792.39, 514,468.05 and 211,662.43 is: 292,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,792.39 : 514,468.05 = 211,662.43 : x
  2. Step 2: Convert to fraction form
    372,792.39/514,468.05 = 211,662.43/x
  3. Step 3: Cross multiply
    372,792.39x = 514,468.05 × 211,662.43
  4. Step 4: Simplify right side
    372,792.39x = 108,893,557,620.36
  5. Step 5: Solve for x
    x = 108,893,557,620.36/372,792.39
  6. Step 6: Final answer
    x = 292,102.42

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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.