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Finding the Fourth Proportional to 493,086.72, 739,630.08 and 119,109.72

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Solution

The fourth proportional to 493,086.72, 739,630.08 and 119,109.72 is: 178,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,086.72 : 739,630.08 = 119,109.72 : x
  2. Step 2: Convert to fraction form
    493,086.72/739,630.08 = 119,109.72/x
  3. Step 3: Cross multiply
    493,086.72x = 739,630.08 × 119,109.72
  4. Step 4: Simplify right side
    493,086.72x = 88,097,131,732.38
  5. Step 5: Solve for x
    x = 88,097,131,732.38/493,086.72
  6. Step 6: Final answer
    x = 178,664.58

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Similar ratio
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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.