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Finding the Fourth Proportional to 110,685.96, 165,930.32 and 40,548.87

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Solution

The fourth proportional to 110,685.96, 165,930.32 and 40,548.87 is: 60,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,685.96 : 165,930.32 = 40,548.87 : x
  2. Step 2: Convert to fraction form
    110,685.96/165,930.32 = 40,548.87/x
  3. Step 3: Cross multiply
    110,685.96x = 165,930.32 × 40,548.87
  4. Step 4: Simplify right side
    110,685.96x = 6,728,286,974.74
  5. Step 5: Solve for x
    x = 6,728,286,974.74/110,685.96
  6. Step 6: Final answer
    x = 60,787.18

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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.