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Finding the Fourth Proportional to 167,712.69, 251,685.69 and 108,401.25

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Solution

The fourth proportional to 167,712.69, 251,685.69 and 108,401.25 is: 162,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,712.69 : 251,685.69 = 108,401.25 : x
  2. Step 2: Convert to fraction form
    167,712.69/251,685.69 = 108,401.25/x
  3. Step 3: Cross multiply
    167,712.69x = 251,685.69 × 108,401.25
  4. Step 4: Simplify right side
    167,712.69x = 27,283,043,403.11
  5. Step 5: Solve for x
    x = 27,283,043,403.11/167,712.69
  6. Step 6: Final answer
    x = 162,677.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.