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Finding the Fourth Proportional to 323,329.41, 485,018.72 and 110,031.30

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Solution

The fourth proportional to 323,329.41, 485,018.72 and 110,031.30 is: 165,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,329.41 : 485,018.72 = 110,031.30 : x
  2. Step 2: Convert to fraction form
    323,329.41/485,018.72 = 110,031.30/x
  3. Step 3: Cross multiply
    323,329.41x = 485,018.72 × 110,031.30
  4. Step 4: Simplify right side
    323,329.41x = 53,367,239,735.78
  5. Step 5: Solve for x
    x = 53,367,239,735.78/323,329.41
  6. Step 6: Final answer
    x = 165,055.32

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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.