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Finding the Fourth Proportional to 254,245.34, 381,491.93 and 104,530.61

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Solution

The fourth proportional to 254,245.34, 381,491.93 and 104,530.61 is: 156,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,245.34 : 381,491.93 = 104,530.61 : x
  2. Step 2: Convert to fraction form
    254,245.34/381,491.93 = 104,530.61/x
  3. Step 3: Cross multiply
    254,245.34x = 381,491.93 × 104,530.61
  4. Step 4: Simplify right side
    254,245.34x = 39,877,581,722.86
  5. Step 5: Solve for x
    x = 39,877,581,722.86/254,245.34
  6. Step 6: Final answer
    x = 156,846.86

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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.