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Finding the Fourth Proportional to 112,728.70, 169,043.23 and 33,827.82

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Solution

The fourth proportional to 112,728.70, 169,043.23 and 33,827.82 is: 50,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,728.70 : 169,043.23 = 33,827.82 : x
  2. Step 2: Convert to fraction form
    112,728.70/169,043.23 = 33,827.82/x
  3. Step 3: Cross multiply
    112,728.70x = 169,043.23 × 33,827.82
  4. Step 4: Simplify right side
    112,728.70x = 5,718,363,956.66
  5. Step 5: Solve for x
    x = 5,718,363,956.66/112,728.70
  6. Step 6: Final answer
    x = 50,726.78

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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.