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Finding the Fourth Proportional to 339,842.54, 468,994.50 and 186,887

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Solution

The fourth proportional to 339,842.54, 468,994.50 and 186,887 is: 257,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,842.54 : 468,994.50 = 186,887 : x
  2. Step 2: Convert to fraction form
    339,842.54/468,994.50 = 186,887/x
  3. Step 3: Cross multiply
    339,842.54x = 468,994.50 × 186,887
  4. Step 4: Simplify right side
    339,842.54x = 87,648,975,121.50
  5. Step 5: Solve for x
    x = 87,648,975,121.50/339,842.54
  6. Step 6: Final answer
    x = 257,910.55

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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.