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Finding the Fourth Proportional to 104,383.50, 144,051.75 and 61,942.38

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Solution

The fourth proportional to 104,383.50, 144,051.75 and 61,942.38 is: 85,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,383.50 : 144,051.75 = 61,942.38 : x
  2. Step 2: Convert to fraction form
    104,383.50/144,051.75 = 61,942.38/x
  3. Step 3: Cross multiply
    104,383.50x = 144,051.75 × 61,942.38
  4. Step 4: Simplify right side
    104,383.50x = 8,922,908,238.17
  5. Step 5: Solve for x
    x = 8,922,908,238.17/104,383.50
  6. Step 6: Final answer
    x = 85,481.98

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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.