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Finding the Fourth Proportional to 361,551.42, 542,324.39 and 108,830.81

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Solution

The fourth proportional to 361,551.42, 542,324.39 and 108,830.81 is: 163,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,551.42 : 542,324.39 = 108,830.81 : x
  2. Step 2: Convert to fraction form
    361,551.42/542,324.39 = 108,830.81/x
  3. Step 3: Cross multiply
    361,551.42x = 542,324.39 × 108,830.81
  4. Step 4: Simplify right side
    361,551.42x = 59,021,599,390.68
  5. Step 5: Solve for x
    x = 59,021,599,390.68/361,551.42
  6. Step 6: Final answer
    x = 163,245.38

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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.