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Finding the Fourth Proportional to 324,024.60, 485,891.10 and 124,278.60

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Solution

The fourth proportional to 324,024.60, 485,891.10 and 124,278.60 is: 186,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,024.60 : 485,891.10 = 124,278.60 : x
  2. Step 2: Convert to fraction form
    324,024.60/485,891.10 = 124,278.60/x
  3. Step 3: Cross multiply
    324,024.60x = 485,891.10 × 124,278.60
  4. Step 4: Simplify right side
    324,024.60x = 60,385,865,660.46
  5. Step 5: Solve for x
    x = 60,385,865,660.46/324,024.60
  6. Step 6: Final answer
    x = 186,361.98

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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.