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Finding the Fourth Proportional to 334,137.80, 501,206.70 and 84,819.80

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Solution

The fourth proportional to 334,137.80, 501,206.70 and 84,819.80 is: 127,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,137.80 : 501,206.70 = 84,819.80 : x
  2. Step 2: Convert to fraction form
    334,137.80/501,206.70 = 84,819.80/x
  3. Step 3: Cross multiply
    334,137.80x = 501,206.70 × 84,819.80
  4. Step 4: Simplify right side
    334,137.80x = 42,512,252,052.66
  5. Step 5: Solve for x
    x = 42,512,252,052.66/334,137.80
  6. Step 6: Final answer
    x = 127,229.70

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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.