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Finding the Fourth Proportional to 117,891.69, 176,035.65 and 111,231.77

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Solution

The fourth proportional to 117,891.69, 176,035.65 and 111,231.77 is: 166,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,891.69 : 176,035.65 = 111,231.77 : x
  2. Step 2: Convert to fraction form
    117,891.69/176,035.65 = 111,231.77/x
  3. Step 3: Cross multiply
    117,891.69x = 176,035.65 × 111,231.77
  4. Step 4: Simplify right side
    117,891.69x = 19,580,755,635.30
  5. Step 5: Solve for x
    x = 19,580,755,635.30/117,891.69
  6. Step 6: Final answer
    x = 166,091.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.