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Finding the Fourth Proportional to 179,309.26, 269,009.25 and 128,766.34

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Solution

The fourth proportional to 179,309.26, 269,009.25 and 128,766.34 is: 193,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,309.26 : 269,009.25 = 128,766.34 : x
  2. Step 2: Convert to fraction form
    179,309.26/269,009.25 = 128,766.34/x
  3. Step 3: Cross multiply
    179,309.26x = 269,009.25 × 128,766.34
  4. Step 4: Simplify right side
    179,309.26x = 34,639,336,548.65
  5. Step 5: Solve for x
    x = 34,639,336,548.65/179,309.26
  6. Step 6: Final answer
    x = 193,182.08

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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.