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Finding the Fourth Proportional to 107,042.80, 160,586.72 and 40,481.44

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Solution

The fourth proportional to 107,042.80, 160,586.72 and 40,481.44 is: 60,730.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,042.80 : 160,586.72 = 40,481.44 : x
  2. Step 2: Convert to fraction form
    107,042.80/160,586.72 = 40,481.44/x
  3. Step 3: Cross multiply
    107,042.80x = 160,586.72 × 40,481.44
  4. Step 4: Simplify right side
    107,042.80x = 6,500,781,670.48
  5. Step 5: Solve for x
    x = 6,500,781,670.48/107,042.80
  6. Step 6: Final answer
    x = 60,730.68

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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.