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Finding the Fourth Proportional to 240,016.20, 359,793.90 and 186,678.60

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Solution

The fourth proportional to 240,016.20, 359,793.90 and 186,678.60 is: 279,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,016.20 : 359,793.90 = 186,678.60 : x
  2. Step 2: Convert to fraction form
    240,016.20/359,793.90 = 186,678.60/x
  3. Step 3: Cross multiply
    240,016.20x = 359,793.90 × 186,678.60
  4. Step 4: Simplify right side
    240,016.20x = 67,165,821,540.54
  5. Step 5: Solve for x
    x = 67,165,821,540.54/240,016.20
  6. Step 6: Final answer
    x = 279,838.70

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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.