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Finding the Fourth Proportional to 202,860.56, 279,879.58 and 116,817.72

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Solution

The fourth proportional to 202,860.56, 279,879.58 and 116,817.72 is: 161,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,860.56 : 279,879.58 = 116,817.72 : x
  2. Step 2: Convert to fraction form
    202,860.56/279,879.58 = 116,817.72/x
  3. Step 3: Cross multiply
    202,860.56x = 279,879.58 × 116,817.72
  4. Step 4: Simplify right side
    202,860.56x = 32,694,894,410.16
  5. Step 5: Solve for x
    x = 32,694,894,410.16/202,860.56
  6. Step 6: Final answer
    x = 161,169.30

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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.