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Finding the Fourth Proportional to 334,069.20, 501,103.80 and 219,907.80

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Solution

The fourth proportional to 334,069.20, 501,103.80 and 219,907.80 is: 329,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,069.20 : 501,103.80 = 219,907.80 : x
  2. Step 2: Convert to fraction form
    334,069.20/501,103.80 = 219,907.80/x
  3. Step 3: Cross multiply
    334,069.20x = 501,103.80 × 219,907.80
  4. Step 4: Simplify right side
    334,069.20x = 110,196,634,229.64
  5. Step 5: Solve for x
    x = 110,196,634,229.64/334,069.20
  6. Step 6: Final answer
    x = 329,861.70

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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.