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Finding the Fourth Proportional to 223,087.80, 334,890.90 and 221,532.60

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Solution

The fourth proportional to 223,087.80, 334,890.90 and 221,532.60 is: 332,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,087.80 : 334,890.90 = 221,532.60 : x
  2. Step 2: Convert to fraction form
    223,087.80/334,890.90 = 221,532.60/x
  3. Step 3: Cross multiply
    223,087.80x = 334,890.90 × 221,532.60
  4. Step 4: Simplify right side
    223,087.80x = 74,189,251,793.34
  5. Step 5: Solve for x
    x = 74,189,251,793.34/223,087.80
  6. Step 6: Final answer
    x = 332,556.29

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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.