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Finding the Fourth Proportional to 361,558.28, 542,340.66 and 95,356.64

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Solution

The fourth proportional to 361,558.28, 542,340.66 and 95,356.64 is: 143,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,558.28 : 542,340.66 = 95,356.64 : x
  2. Step 2: Convert to fraction form
    361,558.28/542,340.66 = 95,356.64/x
  3. Step 3: Cross multiply
    361,558.28x = 542,340.66 × 95,356.64
  4. Step 4: Simplify right side
    361,558.28x = 51,715,783,072.98
  5. Step 5: Solve for x
    x = 51,715,783,072.98/361,558.28
  6. Step 6: Final answer
    x = 143,035.81

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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.