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Finding the Fourth Proportional to 129,999.50, 194,974.58 and 63,372.62

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Solution

The fourth proportional to 129,999.50, 194,974.58 and 63,372.62 is: 95,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,999.50 : 194,974.58 = 63,372.62 : x
  2. Step 2: Convert to fraction form
    129,999.50/194,974.58 = 63,372.62/x
  3. Step 3: Cross multiply
    129,999.50x = 194,974.58 × 63,372.62
  4. Step 4: Simplify right side
    129,999.50x = 12,356,049,968.00
  5. Step 5: Solve for x
    x = 12,356,049,968.00/129,999.50
  6. Step 6: Final answer
    x = 95,046.90

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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.