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Finding the Fourth Proportional to 361,234.38, 541,852.83 and 121,341.42

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Solution

The fourth proportional to 361,234.38, 541,852.83 and 121,341.42 is: 182,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,234.38 : 541,852.83 = 121,341.42 : x
  2. Step 2: Convert to fraction form
    361,234.38/541,852.83 = 121,341.42/x
  3. Step 3: Cross multiply
    361,234.38x = 541,852.83 × 121,341.42
  4. Step 4: Simplify right side
    361,234.38x = 65,749,191,823.22
  5. Step 5: Solve for x
    x = 65,749,191,823.22/361,234.38
  6. Step 6: Final answer
    x = 182,012.55

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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.