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Finding the Fourth Proportional to 186,135.20, 278,873.40 and 179,968.40

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Solution

The fourth proportional to 186,135.20, 278,873.40 and 179,968.40 is: 269,634.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,135.20 : 278,873.40 = 179,968.40 : x
  2. Step 2: Convert to fraction form
    186,135.20/278,873.40 = 179,968.40/x
  3. Step 3: Cross multiply
    186,135.20x = 278,873.40 × 179,968.40
  4. Step 4: Simplify right side
    186,135.20x = 50,188,399,600.56
  5. Step 5: Solve for x
    x = 50,188,399,600.56/186,135.20
  6. Step 6: Final answer
    x = 269,634.11

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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.