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Finding the Fourth Proportional to 104,057.52, 143,661.24 and 68,310.06

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Solution

The fourth proportional to 104,057.52, 143,661.24 and 68,310.06 is: 94,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,057.52 : 143,661.24 = 68,310.06 : x
  2. Step 2: Convert to fraction form
    104,057.52/143,661.24 = 68,310.06/x
  3. Step 3: Cross multiply
    104,057.52x = 143,661.24 × 68,310.06
  4. Step 4: Simplify right side
    104,057.52x = 9,813,507,924.07
  5. Step 5: Solve for x
    x = 9,813,507,924.07/104,057.52
  6. Step 6: Final answer
    x = 94,308.49

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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.