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Finding the Fourth Proportional to 68,953.09, 103,377.02 and 35,651.90

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Solution

The fourth proportional to 68,953.09, 103,377.02 and 35,651.90 is: 53,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953.09 : 103,377.02 = 35,651.90 : x
  2. Step 2: Convert to fraction form
    68,953.09/103,377.02 = 35,651.90/x
  3. Step 3: Cross multiply
    68,953.09x = 103,377.02 × 35,651.90
  4. Step 4: Simplify right side
    68,953.09x = 3,685,586,484.19
  5. Step 5: Solve for x
    x = 3,685,586,484.19/68,953.09
  6. Step 6: Final answer
    x = 53,450.64

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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.