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Finding the Fourth Proportional to 362,986.20, 544,041.90 and 185,401.80

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Solution

The fourth proportional to 362,986.20, 544,041.90 and 185,401.80 is: 277,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,986.20 : 544,041.90 = 185,401.80 : x
  2. Step 2: Convert to fraction form
    362,986.20/544,041.90 = 185,401.80/x
  3. Step 3: Cross multiply
    362,986.20x = 544,041.90 × 185,401.80
  4. Step 4: Simplify right side
    362,986.20x = 100,866,347,535.42
  5. Step 5: Solve for x
    x = 100,866,347,535.42/362,986.20
  6. Step 6: Final answer
    x = 277,879.29

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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.