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Finding the Fourth Proportional to 104,187.64, 143,663.14 and 75,450.46

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Solution

The fourth proportional to 104,187.64, 143,663.14 and 75,450.46 is: 104,037.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,187.64 : 143,663.14 = 75,450.46 : x
  2. Step 2: Convert to fraction form
    104,187.64/143,663.14 = 75,450.46/x
  3. Step 3: Cross multiply
    104,187.64x = 143,663.14 × 75,450.46
  4. Step 4: Simplify right side
    104,187.64x = 10,839,449,998.04
  5. Step 5: Solve for x
    x = 10,839,449,998.04/104,187.64
  6. Step 6: Final answer
    x = 104,037.77

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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.