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Finding the Fourth Proportional to 323,904.54, 485,857.64 and 166,046.88

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Solution

The fourth proportional to 323,904.54, 485,857.64 and 166,046.88 is: 249,070.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,904.54 : 485,857.64 = 166,046.88 : x
  2. Step 2: Convert to fraction form
    323,904.54/485,857.64 = 166,046.88/x
  3. Step 3: Cross multiply
    323,904.54x = 485,857.64 × 166,046.88
  4. Step 4: Simplify right side
    323,904.54x = 80,675,145,246.16
  5. Step 5: Solve for x
    x = 80,675,145,246.16/323,904.54
  6. Step 6: Final answer
    x = 249,070.75

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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.