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Finding the Fourth Proportional to 70,163.31, 105,245.87 and 23,416.19

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Solution

The fourth proportional to 70,163.31, 105,245.87 and 23,416.19 is: 35,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,163.31 : 105,245.87 = 23,416.19 : x
  2. Step 2: Convert to fraction form
    70,163.31/105,245.87 = 23,416.19/x
  3. Step 3: Cross multiply
    70,163.31x = 105,245.87 × 23,416.19
  4. Step 4: Simplify right side
    70,163.31x = 2,464,456,645.33
  5. Step 5: Solve for x
    x = 2,464,456,645.33/70,163.31
  6. Step 6: Final answer
    x = 35,124.58

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1.5x scale

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.