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Finding the Fourth Proportional to 126,633.87, 175,553.89 and 119,892.51

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Solution

The fourth proportional to 126,633.87, 175,553.89 and 119,892.51 is: 166,208.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,633.87 : 175,553.89 = 119,892.51 : x
  2. Step 2: Convert to fraction form
    126,633.87/175,553.89 = 119,892.51/x
  3. Step 3: Cross multiply
    126,633.87x = 175,553.89 × 119,892.51
  4. Step 4: Simplify right side
    126,633.87x = 21,047,596,212.63
  5. Step 5: Solve for x
    x = 21,047,596,212.63/126,633.87
  6. Step 6: Final answer
    x = 166,208.27

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.