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Finding the Fourth Proportional to 260,046.35, 389,205.53 and 188,766.35

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Solution

The fourth proportional to 260,046.35, 389,205.53 and 188,766.35 is: 282,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,046.35 : 389,205.53 = 188,766.35 : x
  2. Step 2: Convert to fraction form
    260,046.35/389,205.53 = 188,766.35/x
  3. Step 3: Cross multiply
    260,046.35x = 389,205.53 × 188,766.35
  4. Step 4: Simplify right side
    260,046.35x = 73,468,906,354.08
  5. Step 5: Solve for x
    x = 73,468,906,354.08/260,046.35
  6. Step 6: Final answer
    x = 282,522.35

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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.