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Finding the Fourth Proportional to 144,687.12, 217,041.90 and 43,477.27

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Solution

The fourth proportional to 144,687.12, 217,041.90 and 43,477.27 is: 65,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,687.12 : 217,041.90 = 43,477.27 : x
  2. Step 2: Convert to fraction form
    144,687.12/217,041.90 = 43,477.27/x
  3. Step 3: Cross multiply
    144,687.12x = 217,041.90 × 43,477.27
  4. Step 4: Simplify right side
    144,687.12x = 9,436,388,745.01
  5. Step 5: Solve for x
    x = 9,436,388,745.01/144,687.12
  6. Step 6: Final answer
    x = 65,219.27

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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.