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Finding the Fourth Proportional to 172,382.79, 237,909.92 and 96,930.75

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Solution

The fourth proportional to 172,382.79, 237,909.92 and 96,930.75 is: 133,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,382.79 : 237,909.92 = 96,930.75 : x
  2. Step 2: Convert to fraction form
    172,382.79/237,909.92 = 96,930.75/x
  3. Step 3: Cross multiply
    172,382.79x = 237,909.92 × 96,930.75
  4. Step 4: Simplify right side
    172,382.79x = 23,060,786,493.39
  5. Step 5: Solve for x
    x = 23,060,786,493.39/172,382.79
  6. Step 6: Final answer
    x = 133,776.62

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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.