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Finding the Fourth Proportional to 202,835.02, 279,909.93 and 112,183.87

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Solution

The fourth proportional to 202,835.02, 279,909.93 and 112,183.87 is: 154,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,835.02 : 279,909.93 = 112,183.87 : x
  2. Step 2: Convert to fraction form
    202,835.02/279,909.93 = 112,183.87/x
  3. Step 3: Cross multiply
    202,835.02x = 279,909.93 × 112,183.87
  4. Step 4: Simplify right side
    202,835.02x = 31,401,379,198.83
  5. Step 5: Solve for x
    x = 31,401,379,198.83/202,835.02
  6. Step 6: Final answer
    x = 154,812.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.