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Finding the Fourth Proportional to 331,467.20, 497,200.80 and 144,843.20

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Solution

The fourth proportional to 331,467.20, 497,200.80 and 144,843.20 is: 217,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,467.20 : 497,200.80 = 144,843.20 : x
  2. Step 2: Convert to fraction form
    331,467.20/497,200.80 = 144,843.20/x
  3. Step 3: Cross multiply
    331,467.20x = 497,200.80 × 144,843.20
  4. Step 4: Simplify right side
    331,467.20x = 72,016,154,914.56
  5. Step 5: Solve for x
    x = 72,016,154,914.56/331,467.20
  6. Step 6: Final answer
    x = 217,264.80

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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.