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Finding the Fourth Proportional to 274,713.16, 379,162.74 and 161,600.44

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Solution

The fourth proportional to 274,713.16, 379,162.74 and 161,600.44 is: 223,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,713.16 : 379,162.74 = 161,600.44 : x
  2. Step 2: Convert to fraction form
    274,713.16/379,162.74 = 161,600.44/x
  3. Step 3: Cross multiply
    274,713.16x = 379,162.74 × 161,600.44
  4. Step 4: Simplify right side
    274,713.16x = 61,272,865,615.61
  5. Step 5: Solve for x
    x = 61,272,865,615.61/274,713.16
  6. Step 6: Final answer
    x = 223,043.07

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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.