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Finding the Fourth Proportional to 201,393.80, 302,324.10 and 108,081.80

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Solution

The fourth proportional to 201,393.80, 302,324.10 and 108,081.80 is: 162,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,393.80 : 302,324.10 = 108,081.80 : x
  2. Step 2: Convert to fraction form
    201,393.80/302,324.10 = 108,081.80/x
  3. Step 3: Cross multiply
    201,393.80x = 302,324.10 × 108,081.80
  4. Step 4: Simplify right side
    201,393.80x = 32,675,732,911.38
  5. Step 5: Solve for x
    x = 32,675,732,911.38/201,393.80
  6. Step 6: Final answer
    x = 162,247.96

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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.