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Finding the Fourth Proportional to 79,441.29, 118,980.45 and 37,917.45

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Solution

The fourth proportional to 79,441.29, 118,980.45 and 37,917.45 is: 56,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,441.29 : 118,980.45 = 37,917.45 : x
  2. Step 2: Convert to fraction form
    79,441.29/118,980.45 = 37,917.45/x
  3. Step 3: Cross multiply
    79,441.29x = 118,980.45 × 37,917.45
  4. Step 4: Simplify right side
    79,441.29x = 4,511,435,263.85
  5. Step 5: Solve for x
    x = 4,511,435,263.85/79,441.29
  6. Step 6: Final answer
    x = 56,789.55

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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.