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Finding the Fourth Proportional to 91,296.40, 136,944.60 and 32,198.80

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Solution

The fourth proportional to 91,296.40, 136,944.60 and 32,198.80 is: 48,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,296.40 : 136,944.60 = 32,198.80 : x
  2. Step 2: Convert to fraction form
    91,296.40/136,944.60 = 32,198.80/x
  3. Step 3: Cross multiply
    91,296.40x = 136,944.60 × 32,198.80
  4. Step 4: Simplify right side
    91,296.40x = 4,409,451,786.48
  5. Step 5: Solve for x
    x = 4,409,451,786.48/91,296.40
  6. Step 6: Final answer
    x = 48,298.20

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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.