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Finding the Fourth Proportional to 157,171.27, 235,751.10 and 68,424.97

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Solution

The fourth proportional to 157,171.27, 235,751.10 and 68,424.97 is: 102,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,171.27 : 235,751.10 = 68,424.97 : x
  2. Step 2: Convert to fraction form
    157,171.27/235,751.10 = 68,424.97/x
  3. Step 3: Cross multiply
    157,171.27x = 235,751.10 × 68,424.97
  4. Step 4: Simplify right side
    157,171.27x = 16,131,261,944.97
  5. Step 5: Solve for x
    x = 16,131,261,944.97/157,171.27
  6. Step 6: Final answer
    x = 102,634.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.