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Finding the Fourth Proportional to 110,412.34, 165,621.22 and 40,291.62

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Solution

The fourth proportional to 110,412.34, 165,621.22 and 40,291.62 is: 60,438.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,412.34 : 165,621.22 = 40,291.62 : x
  2. Step 2: Convert to fraction form
    110,412.34/165,621.22 = 40,291.62/x
  3. Step 3: Cross multiply
    110,412.34x = 165,621.22 × 40,291.62
  4. Step 4: Simplify right side
    110,412.34x = 6,673,147,260.18
  5. Step 5: Solve for x
    x = 6,673,147,260.18/110,412.34
  6. Step 6: Final answer
    x = 60,438.42

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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.