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Finding the Fourth Proportional to 204,187.88, 281,754.78 and 113,521.08

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Solution

The fourth proportional to 204,187.88, 281,754.78 and 113,521.08 is: 156,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,187.88 : 281,754.78 = 113,521.08 : x
  2. Step 2: Convert to fraction form
    204,187.88/281,754.78 = 113,521.08/x
  3. Step 3: Cross multiply
    204,187.88x = 281,754.78 × 113,521.08
  4. Step 4: Simplify right side
    204,187.88x = 31,985,106,920.76
  5. Step 5: Solve for x
    x = 31,985,106,920.76/204,187.88
  6. Step 6: Final answer
    x = 156,645.47

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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.