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Finding the Fourth Proportional to 158,096.52, 218,174.91 and 86,474.97

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Solution

The fourth proportional to 158,096.52, 218,174.91 and 86,474.97 is: 119,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,096.52 : 218,174.91 = 86,474.97 : x
  2. Step 2: Convert to fraction form
    158,096.52/218,174.91 = 86,474.97/x
  3. Step 3: Cross multiply
    158,096.52x = 218,174.91 × 86,474.97
  4. Step 4: Simplify right side
    158,096.52x = 18,866,668,797.00
  5. Step 5: Solve for x
    x = 18,866,668,797.00/158,096.52
  6. Step 6: Final answer
    x = 119,336.40

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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.