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Finding the Fourth Proportional to 119,986.62, 165,613.56 and 69,004.92

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Solution

The fourth proportional to 119,986.62, 165,613.56 and 69,004.92 is: 95,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,986.62 : 165,613.56 = 69,004.92 : x
  2. Step 2: Convert to fraction form
    119,986.62/165,613.56 = 69,004.92/x
  3. Step 3: Cross multiply
    119,986.62x = 165,613.56 × 69,004.92
  4. Step 4: Simplify right side
    119,986.62x = 11,428,150,458.72
  5. Step 5: Solve for x
    x = 11,428,150,458.72/119,986.62
  6. Step 6: Final answer
    x = 95,245.21

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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.