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Finding the Fourth Proportional to 120,704.20, 181,055.40 and 36,464.20

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Solution

The fourth proportional to 120,704.20, 181,055.40 and 36,464.20 is: 54,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,704.20 : 181,055.40 = 36,464.20 : x
  2. Step 2: Convert to fraction form
    120,704.20/181,055.40 = 36,464.20/x
  3. Step 3: Cross multiply
    120,704.20x = 181,055.40 × 36,464.20
  4. Step 4: Simplify right side
    120,704.20x = 6,602,040,316.68
  5. Step 5: Solve for x
    x = 6,602,040,316.68/120,704.20
  6. Step 6: Final answer
    x = 54,696.03

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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.