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Finding the Fourth Proportional to 361,338.90, 541,789.65 and 161,622.06

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Solution

The fourth proportional to 361,338.90, 541,789.65 and 161,622.06 is: 242,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,338.90 : 541,789.65 = 161,622.06 : x
  2. Step 2: Convert to fraction form
    361,338.90/541,789.65 = 161,622.06/x
  3. Step 3: Cross multiply
    361,338.90x = 541,789.65 × 161,622.06
  4. Step 4: Simplify right side
    361,338.90x = 87,565,159,319.68
  5. Step 5: Solve for x
    x = 87,565,159,319.68/361,338.90
  6. Step 6: Final answer
    x = 242,335.27

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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.