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Finding the Fourth Proportional to 124,660.62, 186,984.45 and 40,419.54

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Solution

The fourth proportional to 124,660.62, 186,984.45 and 40,419.54 is: 60,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,660.62 : 186,984.45 = 40,419.54 : x
  2. Step 2: Convert to fraction form
    124,660.62/186,984.45 = 40,419.54/x
  3. Step 3: Cross multiply
    124,660.62x = 186,984.45 × 40,419.54
  4. Step 4: Simplify right side
    124,660.62x = 7,557,825,456.15
  5. Step 5: Solve for x
    x = 7,557,825,456.15/124,660.62
  6. Step 6: Final answer
    x = 60,627.21

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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.