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Finding the Fourth Proportional to 361,217.55, 541,828.13 and 148,101.87

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Solution

The fourth proportional to 361,217.55, 541,828.13 and 148,101.87 is: 222,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,217.55 : 541,828.13 = 148,101.87 : x
  2. Step 2: Convert to fraction form
    361,217.55/541,828.13 = 148,101.87/x
  3. Step 3: Cross multiply
    361,217.55x = 541,828.13 × 148,101.87
  4. Step 4: Simplify right side
    361,217.55x = 80,245,758,531.09
  5. Step 5: Solve for x
    x = 80,245,758,531.09/361,217.55
  6. Step 6: Final answer
    x = 222,153.54

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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.