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Finding the Fourth Proportional to 70,374.26, 105,568.08 and 19,773.16

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Solution

The fourth proportional to 70,374.26, 105,568.08 and 19,773.16 is: 29,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,374.26 : 105,568.08 = 19,773.16 : x
  2. Step 2: Convert to fraction form
    70,374.26/105,568.08 = 19,773.16/x
  3. Step 3: Cross multiply
    70,374.26x = 105,568.08 × 19,773.16
  4. Step 4: Simplify right side
    70,374.26x = 2,087,414,198.66
  5. Step 5: Solve for x
    x = 2,087,414,198.66/70,374.26
  6. Step 6: Final answer
    x = 29,661.61

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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.