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Finding the Fourth Proportional to 229,503.20, 344,254.80 and 203,915.30

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Solution

The fourth proportional to 229,503.20, 344,254.80 and 203,915.30 is: 305,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,503.20 : 344,254.80 = 203,915.30 : x
  2. Step 2: Convert to fraction form
    229,503.20/344,254.80 = 203,915.30/x
  3. Step 3: Cross multiply
    229,503.20x = 344,254.80 × 203,915.30
  4. Step 4: Simplify right side
    229,503.20x = 70,198,820,818.44
  5. Step 5: Solve for x
    x = 70,198,820,818.44/229,503.20
  6. Step 6: Final answer
    x = 305,872.95

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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.