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Finding the Fourth Proportional to 188,503.96, 259,942.60 and 124,818.52

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Solution

The fourth proportional to 188,503.96, 259,942.60 and 124,818.52 is: 172,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,503.96 : 259,942.60 = 124,818.52 : x
  2. Step 2: Convert to fraction form
    188,503.96/259,942.60 = 124,818.52/x
  3. Step 3: Cross multiply
    188,503.96x = 259,942.60 × 124,818.52
  4. Step 4: Simplify right side
    188,503.96x = 32,445,650,616.95
  5. Step 5: Solve for x
    x = 32,445,650,616.95/188,503.96
  6. Step 6: Final answer
    x = 172,121.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.