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Finding the Fourth Proportional to 339,936.75, 469,123.04 and 186,967.04

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Solution

The fourth proportional to 339,936.75, 469,123.04 and 186,967.04 is: 258,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,936.75 : 469,123.04 = 186,967.04 : x
  2. Step 2: Convert to fraction form
    339,936.75/469,123.04 = 186,967.04/x
  3. Step 3: Cross multiply
    339,936.75x = 469,123.04 × 186,967.04
  4. Step 4: Simplify right side
    339,936.75x = 87,710,544,306.40
  5. Step 5: Solve for x
    x = 87,710,544,306.40/339,936.75
  6. Step 6: Final answer
    x = 258,020.19

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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.