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Finding the Fourth Proportional to 276,074.20, 414,111.30 and 164,099.80

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Solution

The fourth proportional to 276,074.20, 414,111.30 and 164,099.80 is: 246,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,074.20 : 414,111.30 = 164,099.80 : x
  2. Step 2: Convert to fraction form
    276,074.20/414,111.30 = 164,099.80/x
  3. Step 3: Cross multiply
    276,074.20x = 414,111.30 × 164,099.80
  4. Step 4: Simplify right side
    276,074.20x = 67,955,581,507.74
  5. Step 5: Solve for x
    x = 67,955,581,507.74/276,074.20
  6. Step 6: Final answer
    x = 246,149.70

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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.