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Finding the Fourth Proportional to 144,427.46, 199,328.46 and 80,768.84

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Solution

The fourth proportional to 144,427.46, 199,328.46 and 80,768.84 is: 111,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,427.46 : 199,328.46 = 80,768.84 : x
  2. Step 2: Convert to fraction form
    144,427.46/199,328.46 = 80,768.84/x
  3. Step 3: Cross multiply
    144,427.46x = 199,328.46 × 80,768.84
  4. Step 4: Simplify right side
    144,427.46x = 16,099,528,493.19
  5. Step 5: Solve for x
    x = 16,099,528,493.19/144,427.46
  6. Step 6: Final answer
    x = 111,471.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.