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Finding the Fourth Proportional to 357,377.22, 536,067 and 120,721.86

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Solution

The fourth proportional to 357,377.22, 536,067 and 120,721.86 is: 181,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,377.22 : 536,067 = 120,721.86 : x
  2. Step 2: Convert to fraction form
    357,377.22/536,067 = 120,721.86/x
  3. Step 3: Cross multiply
    357,377.22x = 536,067 × 120,721.86
  4. Step 4: Simplify right side
    357,377.22x = 64,715,005,324.62
  5. Step 5: Solve for x
    x = 64,715,005,324.62/357,377.22
  6. Step 6: Final answer
    x = 181,083.19

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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.