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Finding the Fourth Proportional to 69,797.75, 103,907.23 and 69,382.56

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Solution

The fourth proportional to 69,797.75, 103,907.23 and 69,382.56 is: 103,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,797.75 : 103,907.23 = 69,382.56 : x
  2. Step 2: Convert to fraction form
    69,797.75/103,907.23 = 69,382.56/x
  3. Step 3: Cross multiply
    69,797.75x = 103,907.23 × 69,382.56
  4. Step 4: Simplify right side
    69,797.75x = 7,209,349,885.12
  5. Step 5: Solve for x
    x = 7,209,349,885.12/69,797.75
  6. Step 6: Final answer
    x = 103,289.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.