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Finding the Fourth Proportional to 80,633.08, 120,955.74 and 21,468.52

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Solution

The fourth proportional to 80,633.08, 120,955.74 and 21,468.52 is: 32,204.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,633.08 : 120,955.74 = 21,468.52 : x
  2. Step 2: Convert to fraction form
    80,633.08/120,955.74 = 21,468.52/x
  3. Step 3: Cross multiply
    80,633.08x = 120,955.74 × 21,468.52
  4. Step 4: Simplify right side
    80,633.08x = 2,596,740,723.30
  5. Step 5: Solve for x
    x = 2,596,740,723.30/80,633.08
  6. Step 6: Final answer
    x = 32,204.41

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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.