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Finding the Fourth Proportional to 251,385.52, 376,865.66 and 109,123.88

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Solution

The fourth proportional to 251,385.52, 376,865.66 and 109,123.88 is: 163,593.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,385.52 : 376,865.66 = 109,123.88 : x
  2. Step 2: Convert to fraction form
    251,385.52/376,865.66 = 109,123.88/x
  3. Step 3: Cross multiply
    251,385.52x = 376,865.66 × 109,123.88
  4. Step 4: Simplify right side
    251,385.52x = 41,125,043,057.96
  5. Step 5: Solve for x
    x = 41,125,043,057.96/251,385.52
  6. Step 6: Final answer
    x = 163,593.52

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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.