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Finding the Fourth Proportional to 104,078.12, 156,142.02 and 33,957.50

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Solution

The fourth proportional to 104,078.12, 156,142.02 and 33,957.50 is: 50,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.12 : 156,142.02 = 33,957.50 : x
  2. Step 2: Convert to fraction form
    104,078.12/156,142.02 = 33,957.50/x
  3. Step 3: Cross multiply
    104,078.12x = 156,142.02 × 33,957.50
  4. Step 4: Simplify right side
    104,078.12x = 5,302,192,644.15
  5. Step 5: Solve for x
    x = 5,302,192,644.15/104,078.12
  6. Step 6: Final answer
    x = 50,944.35

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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.