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Finding the Fourth Proportional to 228,539.33, 342,677.72 and 121,791.86

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Solution

The fourth proportional to 228,539.33, 342,677.72 and 121,791.86 is: 182,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,539.33 : 342,677.72 = 121,791.86 : x
  2. Step 2: Convert to fraction form
    228,539.33/342,677.72 = 121,791.86/x
  3. Step 3: Cross multiply
    228,539.33x = 342,677.72 × 121,791.86
  4. Step 4: Simplify right side
    228,539.33x = 41,735,354,577.01
  5. Step 5: Solve for x
    x = 41,735,354,577.01/228,539.33
  6. Step 6: Final answer
    x = 182,617.83

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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.