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Finding the Fourth Proportional to 70,158.60, 105,238.44 and 17,568.27

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Solution

The fourth proportional to 70,158.60, 105,238.44 and 17,568.27 is: 26,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,158.60 : 105,238.44 = 17,568.27 : x
  2. Step 2: Convert to fraction form
    70,158.60/105,238.44 = 17,568.27/x
  3. Step 3: Cross multiply
    70,158.60x = 105,238.44 × 17,568.27
  4. Step 4: Simplify right side
    70,158.60x = 1,848,857,328.30
  5. Step 5: Solve for x
    x = 1,848,857,328.30/70,158.60
  6. Step 6: Final answer
    x = 26,352.54

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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.