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Finding the Fourth Proportional to 120,559.88, 180,843.92 and 48,511.89

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Solution

The fourth proportional to 120,559.88, 180,843.92 and 48,511.89 is: 72,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,559.88 : 180,843.92 = 48,511.89 : x
  2. Step 2: Convert to fraction form
    120,559.88/180,843.92 = 48,511.89/x
  3. Step 3: Cross multiply
    120,559.88x = 180,843.92 × 48,511.89
  4. Step 4: Simplify right side
    120,559.88x = 8,773,080,111.65
  5. Step 5: Solve for x
    x = 8,773,080,111.65/120,559.88
  6. Step 6: Final answer
    x = 72,769.49

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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.