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Finding the Fourth Proportional to 120,755.55, 181,074.42 and 36,499.44

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Solution

The fourth proportional to 120,755.55, 181,074.42 and 36,499.44 is: 54,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,755.55 : 181,074.42 = 36,499.44 : x
  2. Step 2: Convert to fraction form
    120,755.55/181,074.42 = 36,499.44/x
  3. Step 3: Cross multiply
    120,755.55x = 181,074.42 × 36,499.44
  4. Step 4: Simplify right side
    120,755.55x = 6,609,114,928.32
  5. Step 5: Solve for x
    x = 6,609,114,928.32/120,755.55
  6. Step 6: Final answer
    x = 54,731.36

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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.