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Finding the Fourth Proportional to 315,939.30, 474,096.15 and 116,399.94

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Solution

The fourth proportional to 315,939.30, 474,096.15 and 116,399.94 is: 174,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,939.30 : 474,096.15 = 116,399.94 : x
  2. Step 2: Convert to fraction form
    315,939.30/474,096.15 = 116,399.94/x
  3. Step 3: Cross multiply
    315,939.30x = 474,096.15 × 116,399.94
  4. Step 4: Simplify right side
    315,939.30x = 55,184,763,414.23
  5. Step 5: Solve for x
    x = 55,184,763,414.23/315,939.30
  6. Step 6: Final answer
    x = 174,668.88

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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.