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Finding the Fourth Proportional to 408,504.58, 612,761.38 and 124,241.42

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Solution

The fourth proportional to 408,504.58, 612,761.38 and 124,241.42 is: 186,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,504.58 : 612,761.38 = 124,241.42 : x
  2. Step 2: Convert to fraction form
    408,504.58/612,761.38 = 124,241.42/x
  3. Step 3: Cross multiply
    408,504.58x = 612,761.38 × 124,241.42
  4. Step 4: Simplify right side
    408,504.58x = 76,130,343,972.36
  5. Step 5: Solve for x
    x = 76,130,343,972.36/408,504.58
  6. Step 6: Final answer
    x = 186,363.50

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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.