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Finding the Fourth Proportional to 167,949.92, 231,755.65 and 99,955.93

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Solution

The fourth proportional to 167,949.92, 231,755.65 and 99,955.93 is: 137,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,949.92 : 231,755.65 = 99,955.93 : x
  2. Step 2: Convert to fraction form
    167,949.92/231,755.65 = 99,955.93/x
  3. Step 3: Cross multiply
    167,949.92x = 231,755.65 × 99,955.93
  4. Step 4: Simplify right side
    167,949.92x = 23,165,351,528.50
  5. Step 5: Solve for x
    x = 23,165,351,528.50/167,949.92
  6. Step 6: Final answer
    x = 137,930.11

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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.