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Finding the Fourth Proportional to 311,910.06, 467,860.74 and 75,250.74

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Solution

The fourth proportional to 311,910.06, 467,860.74 and 75,250.74 is: 112,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,910.06 : 467,860.74 = 75,250.74 : x
  2. Step 2: Convert to fraction form
    311,910.06/467,860.74 = 75,250.74/x
  3. Step 3: Cross multiply
    311,910.06x = 467,860.74 × 75,250.74
  4. Step 4: Simplify right side
    311,910.06x = 35,206,866,901.95
  5. Step 5: Solve for x
    x = 35,206,866,901.95/311,910.06
  6. Step 6: Final answer
    x = 112,875.06

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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.