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Finding the Fourth Proportional to 73,175.10, 109,687.05 and 39,824.70

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Solution

The fourth proportional to 73,175.10, 109,687.05 and 39,824.70 is: 59,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,175.10 : 109,687.05 = 39,824.70 : x
  2. Step 2: Convert to fraction form
    73,175.10/109,687.05 = 39,824.70/x
  3. Step 3: Cross multiply
    73,175.10x = 109,687.05 × 39,824.70
  4. Step 4: Simplify right side
    73,175.10x = 4,368,253,860.14
  5. Step 5: Solve for x
    x = 4,368,253,860.14/73,175.10
  6. Step 6: Final answer
    x = 59,695.91

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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.