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Finding the Fourth Proportional to 183,783.22, 253,717.17 and 123,669.94

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Solution

The fourth proportional to 183,783.22, 253,717.17 and 123,669.94 is: 170,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,783.22 : 253,717.17 = 123,669.94 : x
  2. Step 2: Convert to fraction form
    183,783.22/253,717.17 = 123,669.94/x
  3. Step 3: Cross multiply
    183,783.22x = 253,717.17 × 123,669.94
  4. Step 4: Simplify right side
    183,783.22x = 31,377,187,190.87
  5. Step 5: Solve for x
    x = 31,377,187,190.87/183,783.22
  6. Step 6: Final answer
    x = 170,729.34

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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.