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Finding the Fourth Proportional to 188,008.92, 259,447.86 and 103,125.24

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Solution

The fourth proportional to 188,008.92, 259,447.86 and 103,125.24 is: 142,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,008.92 : 259,447.86 = 103,125.24 : x
  2. Step 2: Convert to fraction form
    188,008.92/259,447.86 = 103,125.24/x
  3. Step 3: Cross multiply
    188,008.92x = 259,447.86 × 103,125.24
  4. Step 4: Simplify right side
    188,008.92x = 26,755,622,829.99
  5. Step 5: Solve for x
    x = 26,755,622,829.99/188,008.92
  6. Step 6: Final answer
    x = 142,310.39

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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.