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Finding the Fourth Proportional to 186,995.64, 280,599.54 and 68,651.64

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Solution

The fourth proportional to 186,995.64, 280,599.54 and 68,651.64 is: 103,016.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,995.64 : 280,599.54 = 68,651.64 : x
  2. Step 2: Convert to fraction form
    186,995.64/280,599.54 = 68,651.64/x
  3. Step 3: Cross multiply
    186,995.64x = 280,599.54 × 68,651.64
  4. Step 4: Simplify right side
    186,995.64x = 19,263,618,604.25
  5. Step 5: Solve for x
    x = 19,263,618,604.25/186,995.64
  6. Step 6: Final answer
    x = 103,016.41

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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.