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Finding the Fourth Proportional to 179,429.30, 269,079.15 and 90,653.30

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Solution

The fourth proportional to 179,429.30, 269,079.15 and 90,653.30 is: 135,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,429.30 : 269,079.15 = 90,653.30 : x
  2. Step 2: Convert to fraction form
    179,429.30/269,079.15 = 90,653.30/x
  3. Step 3: Cross multiply
    179,429.30x = 269,079.15 × 90,653.30
  4. Step 4: Simplify right side
    179,429.30x = 24,392,912,908.70
  5. Step 5: Solve for x
    x = 24,392,912,908.70/179,429.30
  6. Step 6: Final answer
    x = 135,947.21

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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.