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Finding the Fourth Proportional to 80,467.40, 120,701.10 and 33,715.40

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Solution

The fourth proportional to 80,467.40, 120,701.10 and 33,715.40 is: 50,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,467.40 : 120,701.10 = 33,715.40 : x
  2. Step 2: Convert to fraction form
    80,467.40/120,701.10 = 33,715.40/x
  3. Step 3: Cross multiply
    80,467.40x = 120,701.10 × 33,715.40
  4. Step 4: Simplify right side
    80,467.40x = 4,069,485,866.94
  5. Step 5: Solve for x
    x = 4,069,485,866.94/80,467.40
  6. Step 6: Final answer
    x = 50,573.10

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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.