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Finding the Fourth Proportional to 108,894.24, 150,260.40 and 61,147.44

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Solution

The fourth proportional to 108,894.24, 150,260.40 and 61,147.44 is: 84,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,894.24 : 150,260.40 = 61,147.44 : x
  2. Step 2: Convert to fraction form
    108,894.24/150,260.40 = 61,147.44/x
  3. Step 3: Cross multiply
    108,894.24x = 150,260.40 × 61,147.44
  4. Step 4: Simplify right side
    108,894.24x = 9,188,038,793.38
  5. Step 5: Solve for x
    x = 9,188,038,793.38/108,894.24
  6. Step 6: Final answer
    x = 84,375.80

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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.