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Finding the Fourth Proportional to 311,901.20, 467,851.80 and 125,046.80

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Solution

The fourth proportional to 311,901.20, 467,851.80 and 125,046.80 is: 187,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,901.20 : 467,851.80 = 125,046.80 : x
  2. Step 2: Convert to fraction form
    311,901.20/467,851.80 = 125,046.80/x
  3. Step 3: Cross multiply
    311,901.20x = 467,851.80 × 125,046.80
  4. Step 4: Simplify right side
    311,901.20x = 58,503,370,464.24
  5. Step 5: Solve for x
    x = 58,503,370,464.24/311,901.20
  6. Step 6: Final answer
    x = 187,570.20

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1.5x scale

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.