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Finding the Fourth Proportional to 203,197.80, 304,359.30 and 168,205.80

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Solution

The fourth proportional to 203,197.80, 304,359.30 and 168,205.80 is: 251,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,197.80 : 304,359.30 = 168,205.80 : x
  2. Step 2: Convert to fraction form
    203,197.80/304,359.30 = 168,205.80/x
  3. Step 3: Cross multiply
    203,197.80x = 304,359.30 × 168,205.80
  4. Step 4: Simplify right side
    203,197.80x = 51,194,999,543.94
  5. Step 5: Solve for x
    x = 51,194,999,543.94/203,197.80
  6. Step 6: Final answer
    x = 251,946.62

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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.