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Finding the Fourth Proportional to 339,896.84, 469,062.78 and 186,941.57

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Solution

The fourth proportional to 339,896.84, 469,062.78 and 186,941.57 is: 257,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,896.84 : 469,062.78 = 186,941.57 : x
  2. Step 2: Convert to fraction form
    339,896.84/469,062.78 = 186,941.57/x
  3. Step 3: Cross multiply
    339,896.84x = 469,062.78 × 186,941.57
  4. Step 4: Simplify right side
    339,896.84x = 87,687,332,521.76
  5. Step 5: Solve for x
    x = 87,687,332,521.76/339,896.84
  6. Step 6: Final answer
    x = 257,982.19

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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.