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Finding the Fourth Proportional to 198,000.30, 296,891.10 and 79,537.80

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Solution

The fourth proportional to 198,000.30, 296,891.10 and 79,537.80 is: 119,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,000.30 : 296,891.10 = 79,537.80 : x
  2. Step 2: Convert to fraction form
    198,000.30/296,891.10 = 79,537.80/x
  3. Step 3: Cross multiply
    198,000.30x = 296,891.10 × 79,537.80
  4. Step 4: Simplify right side
    198,000.30x = 23,614,064,933.58
  5. Step 5: Solve for x
    x = 23,614,064,933.58/198,000.30
  6. Step 6: Final answer
    x = 119,262.77

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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.