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Finding the Fourth Proportional to 100,550.85, 150,696.68 and 61,066.05

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Solution

The fourth proportional to 100,550.85, 150,696.68 and 61,066.05 is: 91,520.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,550.85 : 150,696.68 = 61,066.05 : x
  2. Step 2: Convert to fraction form
    100,550.85/150,696.68 = 61,066.05/x
  3. Step 3: Cross multiply
    100,550.85x = 150,696.68 × 61,066.05
  4. Step 4: Simplify right side
    100,550.85x = 9,202,450,690.38
  5. Step 5: Solve for x
    x = 9,202,450,690.38/100,550.85
  6. Step 6: Final answer
    x = 91,520.37

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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.