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Finding the Fourth Proportional to 373,295.88, 515,192.05 and 212,175.15

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Solution

The fourth proportional to 373,295.88, 515,192.05 and 212,175.15 is: 292,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,295.88 : 515,192.05 = 212,175.15 : x
  2. Step 2: Convert to fraction form
    373,295.88/515,192.05 = 212,175.15/x
  3. Step 3: Cross multiply
    373,295.88x = 515,192.05 × 212,175.15
  4. Step 4: Simplify right side
    373,295.88x = 109,310,947,911.60
  5. Step 5: Solve for x
    x = 109,310,947,911.60/373,295.88
  6. Step 6: Final answer
    x = 292,826.56

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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.