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Finding the Fourth Proportional to 323,531.10, 446,474.52 and 187,645.50

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Solution

The fourth proportional to 323,531.10, 446,474.52 and 187,645.50 is: 258,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,531.10 : 446,474.52 = 187,645.50 : x
  2. Step 2: Convert to fraction form
    323,531.10/446,474.52 = 187,645.50/x
  3. Step 3: Cross multiply
    323,531.10x = 446,474.52 × 187,645.50
  4. Step 4: Simplify right side
    323,531.10x = 83,778,934,542.66
  5. Step 5: Solve for x
    x = 83,778,934,542.66/323,531.10
  6. Step 6: Final answer
    x = 258,951.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.