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Finding the Fourth Proportional to 229,212.80, 343,819.20 and 166,227.20

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Solution

The fourth proportional to 229,212.80, 343,819.20 and 166,227.20 is: 249,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,212.80 : 343,819.20 = 166,227.20 : x
  2. Step 2: Convert to fraction form
    229,212.80/343,819.20 = 166,227.20/x
  3. Step 3: Cross multiply
    229,212.80x = 343,819.20 × 166,227.20
  4. Step 4: Simplify right side
    229,212.80x = 57,152,102,922.24
  5. Step 5: Solve for x
    x = 57,152,102,922.24/229,212.80
  6. Step 6: Final answer
    x = 249,340.80

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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.