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Finding the Fourth Proportional to 329,119.38, 493,654.45 and 118,757.31

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Solution

The fourth proportional to 329,119.38, 493,654.45 and 118,757.31 is: 178,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,119.38 : 493,654.45 = 118,757.31 : x
  2. Step 2: Convert to fraction form
    329,119.38/493,654.45 = 118,757.31/x
  3. Step 3: Cross multiply
    329,119.38x = 493,654.45 × 118,757.31
  4. Step 4: Simplify right side
    329,119.38x = 58,625,076,791.31
  5. Step 5: Solve for x
    x = 58,625,076,791.31/329,119.38
  6. Step 6: Final answer
    x = 178,127.09

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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.