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Finding the Fourth Proportional to 203,693.30, 280,099.72 and 176,788.96

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Solution

The fourth proportional to 203,693.30, 280,099.72 and 176,788.96 is: 243,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,693.30 : 280,099.72 = 176,788.96 : x
  2. Step 2: Convert to fraction form
    203,693.30/280,099.72 = 176,788.96/x
  3. Step 3: Cross multiply
    203,693.30x = 280,099.72 × 176,788.96
  4. Step 4: Simplify right side
    203,693.30x = 49,518,535,910.65
  5. Step 5: Solve for x
    x = 49,518,535,910.65/203,693.30
  6. Step 6: Final answer
    x = 243,103.41

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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.