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Finding the Fourth Proportional to 188,505.96, 259,945.36 and 124,820.52

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Solution

The fourth proportional to 188,505.96, 259,945.36 and 124,820.52 is: 172,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,505.96 : 259,945.36 = 124,820.52 : x
  2. Step 2: Convert to fraction form
    188,505.96/259,945.36 = 124,820.52/x
  3. Step 3: Cross multiply
    188,505.96x = 259,945.36 × 124,820.52
  4. Step 4: Simplify right side
    188,505.96x = 32,446,515,006.79
  5. Step 5: Solve for x
    x = 32,446,515,006.79/188,505.96
  6. Step 6: Final answer
    x = 172,124.61

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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.