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Finding the Fourth Proportional to 81,863.50, 112,972.17 and 46,053.22

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Solution

The fourth proportional to 81,863.50, 112,972.17 and 46,053.22 is: 63,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.50 : 112,972.17 = 46,053.22 : x
  2. Step 2: Convert to fraction form
    81,863.50/112,972.17 = 46,053.22/x
  3. Step 3: Cross multiply
    81,863.50x = 112,972.17 × 46,053.22
  4. Step 4: Simplify right side
    81,863.50x = 5,202,732,198.89
  5. Step 5: Solve for x
    x = 5,202,732,198.89/81,863.50
  6. Step 6: Final answer
    x = 63,553.75

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1.5x scale

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.