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Finding the Fourth Proportional to 69,651.50, 104,374.80 and 41,159.15

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Solution

The fourth proportional to 69,651.50, 104,374.80 and 41,159.15 is: 61,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,651.50 : 104,374.80 = 41,159.15 : x
  2. Step 2: Convert to fraction form
    69,651.50/104,374.80 = 41,159.15/x
  3. Step 3: Cross multiply
    69,651.50x = 104,374.80 × 41,159.15
  4. Step 4: Simplify right side
    69,651.50x = 4,295,977,527.55
  5. Step 5: Solve for x
    x = 4,295,977,527.55/69,651.50
  6. Step 6: Final answer
    x = 61,678.18

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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.