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Finding the Fourth Proportional to 104,063.80, 143,569.36 and 68,273.68

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Solution

The fourth proportional to 104,063.80, 143,569.36 and 68,273.68 is: 94,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,063.80 : 143,569.36 = 68,273.68 : x
  2. Step 2: Convert to fraction form
    104,063.80/143,569.36 = 68,273.68/x
  3. Step 3: Cross multiply
    104,063.80x = 143,569.36 × 68,273.68
  4. Step 4: Simplify right side
    104,063.80x = 9,802,008,542.44
  5. Step 5: Solve for x
    x = 9,802,008,542.44/104,063.80
  6. Step 6: Final answer
    x = 94,192.30

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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.