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Finding the Fourth Proportional to 347,416.80, 520,774.36 and 167,237.61

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Solution

The fourth proportional to 347,416.80, 520,774.36 and 167,237.61 is: 250,687.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,416.80 : 520,774.36 = 167,237.61 : x
  2. Step 2: Convert to fraction form
    347,416.80/520,774.36 = 167,237.61/x
  3. Step 3: Cross multiply
    347,416.80x = 520,774.36 × 167,237.61
  4. Step 4: Simplify right side
    347,416.80x = 87,093,060,814.75
  5. Step 5: Solve for x
    x = 87,093,060,814.75/347,416.80
  6. Step 6: Final answer
    x = 250,687.54

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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.