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Finding the Fourth Proportional to 351,753.52, 485,419.26 and 190,612.96

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Solution

The fourth proportional to 351,753.52, 485,419.26 and 190,612.96 is: 263,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,753.52 : 485,419.26 = 190,612.96 : x
  2. Step 2: Convert to fraction form
    351,753.52/485,419.26 = 190,612.96/x
  3. Step 3: Cross multiply
    351,753.52x = 485,419.26 × 190,612.96
  4. Step 4: Simplify right side
    351,753.52x = 92,527,201,989.61
  5. Step 5: Solve for x
    x = 92,527,201,989.61/351,753.52
  6. Step 6: Final answer
    x = 263,045.56

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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.