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Finding the Fourth Proportional to 339,689.70, 468,777.61 and 186,734.33

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Solution

The fourth proportional to 339,689.70, 468,777.61 and 186,734.33 is: 257,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,689.70 : 468,777.61 = 186,734.33 : x
  2. Step 2: Convert to fraction form
    339,689.70/468,777.61 = 186,734.33/x
  3. Step 3: Cross multiply
    339,689.70x = 468,777.61 × 186,734.33
  4. Step 4: Simplify right side
    339,689.70x = 87,536,872,922.35
  5. Step 5: Solve for x
    x = 87,536,872,922.35/339,689.70
  6. Step 6: Final answer
    x = 257,696.58

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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.