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Finding the Fourth Proportional to 361,562.09, 542,124.37 and 161,845.25

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Solution

The fourth proportional to 361,562.09, 542,124.37 and 161,845.25 is: 242,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,562.09 : 542,124.37 = 161,845.25 : x
  2. Step 2: Convert to fraction form
    361,562.09/542,124.37 = 161,845.25/x
  3. Step 3: Cross multiply
    361,562.09x = 542,124.37 × 161,845.25
  4. Step 4: Simplify right side
    361,562.09x = 87,740,253,384.52
  5. Step 5: Solve for x
    x = 87,740,253,384.52/361,562.09
  6. Step 6: Final answer
    x = 242,669.95

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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.