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Finding the Fourth Proportional to 354,720.20, 532,080.30 and 222,009.80

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Solution

The fourth proportional to 354,720.20, 532,080.30 and 222,009.80 is: 333,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,720.20 : 532,080.30 = 222,009.80 : x
  2. Step 2: Convert to fraction form
    354,720.20/532,080.30 = 222,009.80/x
  3. Step 3: Cross multiply
    354,720.20x = 532,080.30 × 222,009.80
  4. Step 4: Simplify right side
    354,720.20x = 118,127,040,986.94
  5. Step 5: Solve for x
    x = 118,127,040,986.94/354,720.20
  6. Step 6: Final answer
    x = 333,014.70

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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.