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Finding the Fourth Proportional to 323,726.49, 485,729.61 and 173,791.69

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Solution

The fourth proportional to 323,726.49, 485,729.61 and 173,791.69 is: 260,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,726.49 : 485,729.61 = 173,791.69 : x
  2. Step 2: Convert to fraction form
    323,726.49/485,729.61 = 173,791.69/x
  3. Step 3: Cross multiply
    323,726.49x = 485,729.61 × 173,791.69
  4. Step 4: Simplify right side
    323,726.49x = 84,415,771,648.71
  5. Step 5: Solve for x
    x = 84,415,771,648.71/323,726.49
  6. Step 6: Final answer
    x = 260,762.63

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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.