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Finding the Fourth Proportional to 202,311.30, 279,147.91 and 116,253.66

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Solution

The fourth proportional to 202,311.30, 279,147.91 and 116,253.66 is: 160,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,311.30 : 279,147.91 = 116,253.66 : x
  2. Step 2: Convert to fraction form
    202,311.30/279,147.91 = 116,253.66/x
  3. Step 3: Cross multiply
    202,311.30x = 279,147.91 × 116,253.66
  4. Step 4: Simplify right side
    202,311.30x = 32,451,964,823.11
  5. Step 5: Solve for x
    x = 32,451,964,823.11/202,311.30
  6. Step 6: Final answer
    x = 160,406.09

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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.