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Finding the Fourth Proportional to 69,842.50, 104,785.63 and 44,910.70

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Solution

The fourth proportional to 69,842.50, 104,785.63 and 44,910.70 is: 67,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,842.50 : 104,785.63 = 44,910.70 : x
  2. Step 2: Convert to fraction form
    69,842.50/104,785.63 = 44,910.70/x
  3. Step 3: Cross multiply
    69,842.50x = 104,785.63 × 44,910.70
  4. Step 4: Simplify right side
    69,842.50x = 4,705,996,461.04
  5. Step 5: Solve for x
    x = 4,705,996,461.04/69,842.50
  6. Step 6: Final answer
    x = 67,380.12

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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.