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Finding the Fourth Proportional to 347,183.69, 520,939.30 and 122,649.86

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Solution

The fourth proportional to 347,183.69, 520,939.30 and 122,649.86 is: 184,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,183.69 : 520,939.30 = 122,649.86 : x
  2. Step 2: Convert to fraction form
    347,183.69/520,939.30 = 122,649.86/x
  3. Step 3: Cross multiply
    347,183.69x = 520,939.30 × 122,649.86
  4. Step 4: Simplify right side
    347,183.69x = 63,893,134,538.04
  5. Step 5: Solve for x
    x = 63,893,134,538.04/347,183.69
  6. Step 6: Final answer
    x = 184,032.65

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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.