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Finding the Fourth Proportional to 179,275.68, 269,079.84 and 90,591.42

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Solution

The fourth proportional to 179,275.68, 269,079.84 and 90,591.42 is: 135,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,275.68 : 269,079.84 = 90,591.42 : x
  2. Step 2: Convert to fraction form
    179,275.68/269,079.84 = 90,591.42/x
  3. Step 3: Cross multiply
    179,275.68x = 269,079.84 × 90,591.42
  4. Step 4: Simplify right side
    179,275.68x = 24,376,324,798.97
  5. Step 5: Solve for x
    x = 24,376,324,798.97/179,275.68
  6. Step 6: Final answer
    x = 135,971.17

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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.