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Finding the Fourth Proportional to 186,651.42, 279,799.76 and 118,993.54

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Solution

The fourth proportional to 186,651.42, 279,799.76 and 118,993.54 is: 178,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,651.42 : 279,799.76 = 118,993.54 : x
  2. Step 2: Convert to fraction form
    186,651.42/279,799.76 = 118,993.54/x
  3. Step 3: Cross multiply
    186,651.42x = 279,799.76 × 118,993.54
  4. Step 4: Simplify right side
    186,651.42x = 33,294,363,933.55
  5. Step 5: Solve for x
    x = 33,294,363,933.55/186,651.42
  6. Step 6: Final answer
    x = 178,377.23

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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.