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Finding the Fourth Proportional to 320,706.56, 481,682.63 and 236,132.71

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Solution

The fourth proportional to 320,706.56, 481,682.63 and 236,132.71 is: 354,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,706.56 : 481,682.63 = 236,132.71 : x
  2. Step 2: Convert to fraction form
    320,706.56/481,682.63 = 236,132.71/x
  3. Step 3: Cross multiply
    320,706.56x = 481,682.63 × 236,132.71
  4. Step 4: Simplify right side
    320,706.56x = 113,741,024,167.95
  5. Step 5: Solve for x
    x = 113,741,024,167.95/320,706.56
  6. Step 6: Final answer
    x = 354,657.61

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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.