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Finding the Fourth Proportional to 141,361.45, 211,737.69 and 66,369.22

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Solution

The fourth proportional to 141,361.45, 211,737.69 and 66,369.22 is: 99,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,361.45 : 211,737.69 = 66,369.22 : x
  2. Step 2: Convert to fraction form
    141,361.45/211,737.69 = 66,369.22/x
  3. Step 3: Cross multiply
    141,361.45x = 211,737.69 × 66,369.22
  4. Step 4: Simplify right side
    141,361.45x = 14,052,865,329.90
  5. Step 5: Solve for x
    x = 14,052,865,329.90/141,361.45
  6. Step 6: Final answer
    x = 99,410.87

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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.