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Finding the Fourth Proportional to 112,186.44, 154,817.82 and 61,885.44

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Solution

The fourth proportional to 112,186.44, 154,817.82 and 61,885.44 is: 85,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,186.44 : 154,817.82 = 61,885.44 : x
  2. Step 2: Convert to fraction form
    112,186.44/154,817.82 = 61,885.44/x
  3. Step 3: Cross multiply
    112,186.44x = 154,817.82 × 61,885.44
  4. Step 4: Simplify right side
    112,186.44x = 9,580,968,910.54
  5. Step 5: Solve for x
    x = 9,580,968,910.54/112,186.44
  6. Step 6: Final answer
    x = 85,402.20

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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.