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Finding the Fourth Proportional to 171,930.96, 237,275.46 and 99,336.96

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Solution

The fourth proportional to 171,930.96, 237,275.46 and 99,336.96 is: 137,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,930.96 : 237,275.46 = 99,336.96 : x
  2. Step 2: Convert to fraction form
    171,930.96/237,275.46 = 99,336.96/x
  3. Step 3: Cross multiply
    171,930.96x = 237,275.46 × 99,336.96
  4. Step 4: Simplify right side
    171,930.96x = 23,570,222,879.00
  5. Step 5: Solve for x
    x = 23,570,222,879.00/171,930.96
  6. Step 6: Final answer
    x = 137,091.21

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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.