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Finding the Fourth Proportional to 363,688.92, 545,520.51 and 110,959.20

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Solution

The fourth proportional to 363,688.92, 545,520.51 and 110,959.20 is: 166,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,688.92 : 545,520.51 = 110,959.20 : x
  2. Step 2: Convert to fraction form
    363,688.92/545,520.51 = 110,959.20/x
  3. Step 3: Cross multiply
    363,688.92x = 545,520.51 × 110,959.20
  4. Step 4: Simplify right side
    363,688.92x = 60,530,519,373.19
  5. Step 5: Solve for x
    x = 60,530,519,373.19/363,688.92
  6. Step 6: Final answer
    x = 166,434.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.