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Finding the Fourth Proportional to 573,286.80, 859,930.20 and 146,821.80

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Solution

The fourth proportional to 573,286.80, 859,930.20 and 146,821.80 is: 220,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,286.80 : 859,930.20 = 146,821.80 : x
  2. Step 2: Convert to fraction form
    573,286.80/859,930.20 = 146,821.80/x
  3. Step 3: Cross multiply
    573,286.80x = 859,930.20 × 146,821.80
  4. Step 4: Simplify right side
    573,286.80x = 126,256,499,838.36
  5. Step 5: Solve for x
    x = 126,256,499,838.36/573,286.80
  6. Step 6: Final answer
    x = 220,232.70

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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.