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Finding the Fourth Proportional to 80,628.56, 120,885.04 and 37,910.08

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Solution

The fourth proportional to 80,628.56, 120,885.04 and 37,910.08 is: 56,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,628.56 : 120,885.04 = 37,910.08 : x
  2. Step 2: Convert to fraction form
    80,628.56/120,885.04 = 37,910.08/x
  3. Step 3: Cross multiply
    80,628.56x = 120,885.04 × 37,910.08
  4. Step 4: Simplify right side
    80,628.56x = 4,582,761,537.20
  5. Step 5: Solve for x
    x = 4,582,761,537.20/80,628.56
  6. Step 6: Final answer
    x = 56,837.94

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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.