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Finding the Fourth Proportional to 236,393, 326,222.36 and 135,791

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Solution

The fourth proportional to 236,393, 326,222.36 and 135,791 is: 187,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,393 : 326,222.36 = 135,791 : x
  2. Step 2: Convert to fraction form
    236,393/326,222.36 = 135,791/x
  3. Step 3: Cross multiply
    236,393x = 326,222.36 × 135,791
  4. Step 4: Simplify right side
    236,393x = 44,298,060,486.76
  5. Step 5: Solve for x
    x = 44,298,060,486.76/236,393
  6. Step 6: Final answer
    x = 187,391.59

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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.