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Finding the Fourth Proportional to 183,391.68, 253,128.48 and 107,964.48

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Solution

The fourth proportional to 183,391.68, 253,128.48 and 107,964.48 is: 149,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,391.68 : 253,128.48 = 107,964.48 : x
  2. Step 2: Convert to fraction form
    183,391.68/253,128.48 = 107,964.48/x
  3. Step 3: Cross multiply
    183,391.68x = 253,128.48 × 107,964.48
  4. Step 4: Simplify right side
    183,391.68x = 27,328,884,716.39
  5. Step 5: Solve for x
    x = 27,328,884,716.39/183,391.68
  6. Step 6: Final answer
    x = 149,019.22

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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.