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Finding the Fourth Proportional to 104,896.62, 144,810.95 and 71,083.76

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Solution

The fourth proportional to 104,896.62, 144,810.95 and 71,083.76 is: 98,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,896.62 : 144,810.95 = 71,083.76 : x
  2. Step 2: Convert to fraction form
    104,896.62/144,810.95 = 71,083.76/x
  3. Step 3: Cross multiply
    104,896.62x = 144,810.95 × 71,083.76
  4. Step 4: Simplify right side
    104,896.62x = 10,293,705,735.70
  5. Step 5: Solve for x
    x = 10,293,705,735.70/104,896.62
  6. Step 6: Final answer
    x = 98,131.91

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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.