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Finding the Fourth Proportional to 123,942.60, 171,037.08 and 67,354.02

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Solution

The fourth proportional to 123,942.60, 171,037.08 and 67,354.02 is: 92,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,942.60 : 171,037.08 = 67,354.02 : x
  2. Step 2: Convert to fraction form
    123,942.60/171,037.08 = 67,354.02/x
  3. Step 3: Cross multiply
    123,942.60x = 171,037.08 × 67,354.02
  4. Step 4: Simplify right side
    123,942.60x = 11,520,034,907.06
  5. Step 5: Solve for x
    x = 11,520,034,907.06/123,942.60
  6. Step 6: Final answer
    x = 92,946.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.