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Finding the Fourth Proportional to 274,908.86, 379,373.64 and 167,478.82

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Solution

The fourth proportional to 274,908.86, 379,373.64 and 167,478.82 is: 231,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,908.86 : 379,373.64 = 167,478.82 : x
  2. Step 2: Convert to fraction form
    274,908.86/379,373.64 = 167,478.82/x
  3. Step 3: Cross multiply
    274,908.86x = 379,373.64 × 167,478.82
  4. Step 4: Simplify right side
    274,908.86x = 63,537,049,566.30
  5. Step 5: Solve for x
    x = 63,537,049,566.30/274,908.86
  6. Step 6: Final answer
    x = 231,120.41

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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.