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Finding the Fourth Proportional to 166,262.88, 229,369.68 and 99,156

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Solution

The fourth proportional to 166,262.88, 229,369.68 and 99,156 is: 136,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,262.88 : 229,369.68 = 99,156 : x
  2. Step 2: Convert to fraction form
    166,262.88/229,369.68 = 99,156/x
  3. Step 3: Cross multiply
    166,262.88x = 229,369.68 × 99,156
  4. Step 4: Simplify right side
    166,262.88x = 22,743,379,990.08
  5. Step 5: Solve for x
    x = 22,743,379,990.08/166,262.88
  6. Step 6: Final answer
    x = 136,791.69

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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.