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Finding the Fourth Proportional to 172,996.35, 238,735.34 and 96,513.54

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Solution

The fourth proportional to 172,996.35, 238,735.34 and 96,513.54 is: 133,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,996.35 : 238,735.34 = 96,513.54 : x
  2. Step 2: Convert to fraction form
    172,996.35/238,735.34 = 96,513.54/x
  3. Step 3: Cross multiply
    172,996.35x = 238,735.34 × 96,513.54
  4. Step 4: Simplify right side
    172,996.35x = 23,041,192,303.94
  5. Step 5: Solve for x
    x = 23,041,192,303.94/172,996.35
  6. Step 6: Final answer
    x = 133,188.89

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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.