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Finding the Fourth Proportional to 339,762.30, 468,872.91 and 186,816.12

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Solution

The fourth proportional to 339,762.30, 468,872.91 and 186,816.12 is: 257,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,762.30 : 468,872.91 = 186,816.12 : x
  2. Step 2: Convert to fraction form
    339,762.30/468,872.91 = 186,816.12/x
  3. Step 3: Cross multiply
    339,762.30x = 468,872.91 × 186,816.12
  4. Step 4: Simplify right side
    339,762.30x = 87,593,017,819.31
  5. Step 5: Solve for x
    x = 87,593,017,819.31/339,762.30
  6. Step 6: Final answer
    x = 257,806.76

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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.