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Finding the Fourth Proportional to 80,855.96, 121,238.78 and 33,444.63

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Solution

The fourth proportional to 80,855.96, 121,238.78 and 33,444.63 is: 50,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,855.96 : 121,238.78 = 33,444.63 : x
  2. Step 2: Convert to fraction form
    80,855.96/121,238.78 = 33,444.63/x
  3. Step 3: Cross multiply
    80,855.96x = 121,238.78 × 33,444.63
  4. Step 4: Simplify right side
    80,855.96x = 4,054,785,971.53
  5. Step 5: Solve for x
    x = 4,054,785,971.53/80,855.96
  6. Step 6: Final answer
    x = 50,148.27

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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.