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Finding the Fourth Proportional to 361,071.86, 541,223.60 and 136,336.62

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Solution

The fourth proportional to 361,071.86, 541,223.60 and 136,336.62 is: 204,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,071.86 : 541,223.60 = 136,336.62 : x
  2. Step 2: Convert to fraction form
    361,071.86/541,223.60 = 136,336.62/x
  3. Step 3: Cross multiply
    361,071.86x = 541,223.60 × 136,336.62
  4. Step 4: Simplify right side
    361,071.86x = 73,788,596,288.23
  5. Step 5: Solve for x
    x = 73,788,596,288.23/361,071.86
  6. Step 6: Final answer
    x = 204,359.86

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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.