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Finding the Fourth Proportional to 124,592.72, 171,942.08 and 68,004.09

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Solution

The fourth proportional to 124,592.72, 171,942.08 and 68,004.09 is: 93,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,592.72 : 171,942.08 = 68,004.09 : x
  2. Step 2: Convert to fraction form
    124,592.72/171,942.08 = 68,004.09/x
  3. Step 3: Cross multiply
    124,592.72x = 171,942.08 × 68,004.09
  4. Step 4: Simplify right side
    124,592.72x = 11,692,764,343.09
  5. Step 5: Solve for x
    x = 11,692,764,343.09/124,592.72
  6. Step 6: Final answer
    x = 93,847.90

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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.