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Finding the Fourth Proportional to 103,689.53, 155,559.02 and 33,568.87

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Solution

The fourth proportional to 103,689.53, 155,559.02 and 33,568.87 is: 50,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.53 : 155,559.02 = 33,568.87 : x
  2. Step 2: Convert to fraction form
    103,689.53/155,559.02 = 33,568.87/x
  3. Step 3: Cross multiply
    103,689.53x = 155,559.02 × 33,568.87
  4. Step 4: Simplify right side
    103,689.53x = 5,221,940,519.71
  5. Step 5: Solve for x
    x = 5,221,940,519.71/103,689.53
  6. Step 6: Final answer
    x = 50,361.31

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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.