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Finding the Fourth Proportional to 223,212.40, 334,780.20 and 82,898.80

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Solution

The fourth proportional to 223,212.40, 334,780.20 and 82,898.80 is: 124,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,212.40 : 334,780.20 = 82,898.80 : x
  2. Step 2: Convert to fraction form
    223,212.40/334,780.20 = 82,898.80/x
  3. Step 3: Cross multiply
    223,212.40x = 334,780.20 × 82,898.80
  4. Step 4: Simplify right side
    223,212.40x = 27,752,876,843.76
  5. Step 5: Solve for x
    x = 27,752,876,843.76/223,212.40
  6. Step 6: Final answer
    x = 124,333.94

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1.5x scale

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.