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Finding the Fourth Proportional to 363,689.36, 545,521.28 and 110,959.64

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Solution

The fourth proportional to 363,689.36, 545,521.28 and 110,959.64 is: 166,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,689.36 : 545,521.28 = 110,959.64 : x
  2. Step 2: Convert to fraction form
    363,689.36/545,521.28 = 110,959.64/x
  3. Step 3: Cross multiply
    363,689.36x = 545,521.28 × 110,959.64
  4. Step 4: Simplify right side
    363,689.36x = 60,530,844,841.14
  5. Step 5: Solve for x
    x = 60,530,844,841.14/363,689.36
  6. Step 6: Final answer
    x = 166,435.57

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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.