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Finding the Fourth Proportional to 81,863.93, 112,971.11 and 46,053.90

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Solution

The fourth proportional to 81,863.93, 112,971.11 and 46,053.90 is: 63,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.93 : 112,971.11 = 46,053.90 : x
  2. Step 2: Convert to fraction form
    81,863.93/112,971.11 = 46,053.90/x
  3. Step 3: Cross multiply
    81,863.93x = 112,971.11 × 46,053.90
  4. Step 4: Simplify right side
    81,863.93x = 5,202,759,972.56
  5. Step 5: Solve for x
    x = 5,202,759,972.56/81,863.93
  6. Step 6: Final answer
    x = 63,553.75

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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.