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Finding the Fourth Proportional to 331,514.66, 457,490.76 and 188,274.62

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Solution

The fourth proportional to 331,514.66, 457,490.76 and 188,274.62 is: 259,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,514.66 : 457,490.76 = 188,274.62 : x
  2. Step 2: Convert to fraction form
    331,514.66/457,490.76 = 188,274.62/x
  3. Step 3: Cross multiply
    331,514.66x = 457,490.76 × 188,274.62
  4. Step 4: Simplify right side
    331,514.66x = 86,133,898,992.51
  5. Step 5: Solve for x
    x = 86,133,898,992.51/331,514.66
  6. Step 6: Final answer
    x = 259,819.28

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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.