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Finding the Fourth Proportional to 110,435.08, 165,672.10 and 40,412.20

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Solution

The fourth proportional to 110,435.08, 165,672.10 and 40,412.20 is: 60,625.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,435.08 : 165,672.10 = 40,412.20 : x
  2. Step 2: Convert to fraction form
    110,435.08/165,672.10 = 40,412.20/x
  3. Step 3: Cross multiply
    110,435.08x = 165,672.10 × 40,412.20
  4. Step 4: Simplify right side
    110,435.08x = 6,695,174,039.62
  5. Step 5: Solve for x
    x = 6,695,174,039.62/110,435.08
  6. Step 6: Final answer
    x = 60,625.43

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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.