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Finding the Fourth Proportional to 98,462.20, 147,692.19 and 66,793.80

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Solution

The fourth proportional to 98,462.20, 147,692.19 and 66,793.80 is: 100,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,462.20 : 147,692.19 = 66,793.80 : x
  2. Step 2: Convert to fraction form
    98,462.20/147,692.19 = 66,793.80/x
  3. Step 3: Cross multiply
    98,462.20x = 147,692.19 × 66,793.80
  4. Step 4: Simplify right side
    98,462.20x = 9,864,922,600.42
  5. Step 5: Solve for x
    x = 9,864,922,600.42/98,462.20
  6. Step 6: Final answer
    x = 100,189.95

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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.