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Finding the Fourth Proportional to 186,648.43, 279,795.27 and 118,990.54

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Solution

The fourth proportional to 186,648.43, 279,795.27 and 118,990.54 is: 178,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,648.43 : 279,795.27 = 118,990.54 : x
  2. Step 2: Convert to fraction form
    186,648.43/279,795.27 = 118,990.54/x
  3. Step 3: Cross multiply
    186,648.43x = 279,795.27 × 118,990.54
  4. Step 4: Simplify right side
    186,648.43x = 33,292,990,266.75
  5. Step 5: Solve for x
    x = 33,292,990,266.75/186,648.43
  6. Step 6: Final answer
    x = 178,372.73

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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.