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Finding the Fourth Proportional to 119,658.27, 165,129.54 and 65,945.22

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Solution

The fourth proportional to 119,658.27, 165,129.54 and 65,945.22 is: 91,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,658.27 : 165,129.54 = 65,945.22 : x
  2. Step 2: Convert to fraction form
    119,658.27/165,129.54 = 65,945.22/x
  3. Step 3: Cross multiply
    119,658.27x = 165,129.54 × 65,945.22
  4. Step 4: Simplify right side
    119,658.27x = 10,889,503,843.80
  5. Step 5: Solve for x
    x = 10,889,503,843.80/119,658.27
  6. Step 6: Final answer
    x = 91,005.02

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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.