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Finding the Fourth Proportional to 323,476.66, 485,244.15 and 123,788.98

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Solution

The fourth proportional to 323,476.66, 485,244.15 and 123,788.98 is: 185,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,476.66 : 485,244.15 = 123,788.98 : x
  2. Step 2: Convert to fraction form
    323,476.66/485,244.15 = 123,788.98/x
  3. Step 3: Cross multiply
    323,476.66x = 485,244.15 × 123,788.98
  4. Step 4: Simplify right side
    323,476.66x = 60,067,878,379.47
  5. Step 5: Solve for x
    x = 60,067,878,379.47/323,476.66
  6. Step 6: Final answer
    x = 185,694.63

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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.