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Finding the Fourth Proportional to 117,771.91, 162,471.63 and 69,998.11

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Solution

The fourth proportional to 117,771.91, 162,471.63 and 69,998.11 is: 96,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,771.91 : 162,471.63 = 69,998.11 : x
  2. Step 2: Convert to fraction form
    117,771.91/162,471.63 = 69,998.11/x
  3. Step 3: Cross multiply
    117,771.91x = 162,471.63 × 69,998.11
  4. Step 4: Simplify right side
    117,771.91x = 11,372,707,028.62
  5. Step 5: Solve for x
    x = 11,372,707,028.62/117,771.91
  6. Step 6: Final answer
    x = 96,565.53

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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.