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Finding the Fourth Proportional to 70,639.74, 106,020.36 and 41,016.42

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Solution

The fourth proportional to 70,639.74, 106,020.36 and 41,016.42 is: 61,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.74 : 106,020.36 = 41,016.42 : x
  2. Step 2: Convert to fraction form
    70,639.74/106,020.36 = 41,016.42/x
  3. Step 3: Cross multiply
    70,639.74x = 106,020.36 × 41,016.42
  4. Step 4: Simplify right side
    70,639.74x = 4,348,575,614.31
  5. Step 5: Solve for x
    x = 4,348,575,614.31/70,639.74
  6. Step 6: Final answer
    x = 61,559.90

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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.