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Finding the Fourth Proportional to 110,187.66, 165,281.49 and 72,738.96

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Solution

The fourth proportional to 110,187.66, 165,281.49 and 72,738.96 is: 109,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,187.66 : 165,281.49 = 72,738.96 : x
  2. Step 2: Convert to fraction form
    110,187.66/165,281.49 = 72,738.96/x
  3. Step 3: Cross multiply
    110,187.66x = 165,281.49 × 72,738.96
  4. Step 4: Simplify right side
    110,187.66x = 12,022,403,689.85
  5. Step 5: Solve for x
    x = 12,022,403,689.85/110,187.66
  6. Step 6: Final answer
    x = 109,108.44

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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.