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Finding the Fourth Proportional to 192,603.59, 288,668.75 and 108,186.30

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Solution

The fourth proportional to 192,603.59, 288,668.75 and 108,186.30 is: 162,146.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,603.59 : 288,668.75 = 108,186.30 : x
  2. Step 2: Convert to fraction form
    192,603.59/288,668.75 = 108,186.30/x
  3. Step 3: Cross multiply
    192,603.59x = 288,668.75 × 108,186.30
  4. Step 4: Simplify right side
    192,603.59x = 31,230,003,447.19
  5. Step 5: Solve for x
    x = 31,230,003,447.19/192,603.59
  6. Step 6: Final answer
    x = 162,146.53

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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.