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Finding the Fourth Proportional to 199,083.68, 274,715.56 and 122,590.56

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Solution

The fourth proportional to 199,083.68, 274,715.56 and 122,590.56 is: 169,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,083.68 : 274,715.56 = 122,590.56 : x
  2. Step 2: Convert to fraction form
    199,083.68/274,715.56 = 122,590.56/x
  3. Step 3: Cross multiply
    199,083.68x = 274,715.56 × 122,590.56
  4. Step 4: Simplify right side
    199,083.68x = 33,677,534,341.11
  5. Step 5: Solve for x
    x = 33,677,534,341.11/199,083.68
  6. Step 6: Final answer
    x = 169,162.71

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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.