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Finding the Fourth Proportional to 276,093.20, 414,139.80 and 164,118.80

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Solution

The fourth proportional to 276,093.20, 414,139.80 and 164,118.80 is: 246,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,093.20 : 414,139.80 = 164,118.80 : x
  2. Step 2: Convert to fraction form
    276,093.20/414,139.80 = 164,118.80/x
  3. Step 3: Cross multiply
    276,093.20x = 414,139.80 × 164,118.80
  4. Step 4: Simplify right side
    276,093.20x = 67,968,127,008.24
  5. Step 5: Solve for x
    x = 67,968,127,008.24/276,093.20
  6. Step 6: Final answer
    x = 246,178.20

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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.