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Finding the Fourth Proportional to 144,361.62, 216,579.79 and 44,519.60

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Solution

The fourth proportional to 144,361.62, 216,579.79 and 44,519.60 is: 66,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,361.62 : 216,579.79 = 44,519.60 : x
  2. Step 2: Convert to fraction form
    144,361.62/216,579.79 = 44,519.60/x
  3. Step 3: Cross multiply
    144,361.62x = 216,579.79 × 44,519.60
  4. Step 4: Simplify right side
    144,361.62x = 9,642,045,618.88
  5. Step 5: Solve for x
    x = 9,642,045,618.88/144,361.62
  6. Step 6: Final answer
    x = 66,790.92

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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.