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Finding the Fourth Proportional to 311,865.60, 467,798.40 and 112,216.80

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Solution

The fourth proportional to 311,865.60, 467,798.40 and 112,216.80 is: 168,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,865.60 : 467,798.40 = 112,216.80 : x
  2. Step 2: Convert to fraction form
    311,865.60/467,798.40 = 112,216.80/x
  3. Step 3: Cross multiply
    311,865.60x = 467,798.40 × 112,216.80
  4. Step 4: Simplify right side
    311,865.60x = 52,494,839,493.12
  5. Step 5: Solve for x
    x = 52,494,839,493.12/311,865.60
  6. Step 6: Final answer
    x = 168,325.20

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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.