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Finding the Fourth Proportional to 167,677.91, 231,396.12 and 91,197

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Solution

The fourth proportional to 167,677.91, 231,396.12 and 91,197 is: 125,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,677.91 : 231,396.12 = 91,197 : x
  2. Step 2: Convert to fraction form
    167,677.91/231,396.12 = 91,197/x
  3. Step 3: Cross multiply
    167,677.91x = 231,396.12 × 91,197
  4. Step 4: Simplify right side
    167,677.91x = 21,102,631,955.64
  5. Step 5: Solve for x
    x = 21,102,631,955.64/167,677.91
  6. Step 6: Final answer
    x = 125,852.19

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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.