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Finding the Fourth Proportional to 303,565.20, 455,369.90 and 116,576.70

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Solution

The fourth proportional to 303,565.20, 455,369.90 and 116,576.70 is: 174,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,565.20 : 455,369.90 = 116,576.70 : x
  2. Step 2: Convert to fraction form
    303,565.20/455,369.90 = 116,576.70/x
  3. Step 3: Cross multiply
    303,565.20x = 455,369.90 × 116,576.70
  4. Step 4: Simplify right side
    303,565.20x = 53,085,520,221.33
  5. Step 5: Solve for x
    x = 53,085,520,221.33/303,565.20
  6. Step 6: Final answer
    x = 174,873.54

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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.