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Finding the Fourth Proportional to 304,811.20, 456,892.80 and 146,936.80

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Solution

The fourth proportional to 304,811.20, 456,892.80 and 146,936.80 is: 220,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,811.20 : 456,892.80 = 146,936.80 : x
  2. Step 2: Convert to fraction form
    304,811.20/456,892.80 = 146,936.80/x
  3. Step 3: Cross multiply
    304,811.20x = 456,892.80 × 146,936.80
  4. Step 4: Simplify right side
    304,811.20x = 67,134,365,975.04
  5. Step 5: Solve for x
    x = 67,134,365,975.04/304,811.20
  6. Step 6: Final answer
    x = 220,249.01

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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.