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Finding the Fourth Proportional to 120,371.94, 180,474.67 and 52,871.40

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Solution

The fourth proportional to 120,371.94, 180,474.67 and 52,871.40 is: 79,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.94 : 180,474.67 = 52,871.40 : x
  2. Step 2: Convert to fraction form
    120,371.94/180,474.67 = 52,871.40/x
  3. Step 3: Cross multiply
    120,371.94x = 180,474.67 × 52,871.40
  4. Step 4: Simplify right side
    120,371.94x = 9,541,948,467.44
  5. Step 5: Solve for x
    x = 9,541,948,467.44/120,371.94
  6. Step 6: Final answer
    x = 79,270.54

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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.