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Finding the Fourth Proportional to 104,896.76, 144,737.56 and 61,889.82

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Solution

The fourth proportional to 104,896.76, 144,737.56 and 61,889.82 is: 85,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,896.76 : 144,737.56 = 61,889.82 : x
  2. Step 2: Convert to fraction form
    104,896.76/144,737.56 = 61,889.82/x
  3. Step 3: Cross multiply
    104,896.76x = 144,737.56 × 61,889.82
  4. Step 4: Simplify right side
    104,896.76x = 8,957,781,535.64
  5. Step 5: Solve for x
    x = 8,957,781,535.64/104,896.76
  6. Step 6: Final answer
    x = 85,396.17

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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.