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Finding the Fourth Proportional to 70,871.33, 106,372.61 and 35,835.59

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Solution

The fourth proportional to 70,871.33, 106,372.61 and 35,835.59 is: 53,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,871.33 : 106,372.61 = 35,835.59 : x
  2. Step 2: Convert to fraction form
    70,871.33/106,372.61 = 35,835.59/x
  3. Step 3: Cross multiply
    70,871.33x = 106,372.61 × 35,835.59
  4. Step 4: Simplify right side
    70,871.33x = 3,811,925,239.19
  5. Step 5: Solve for x
    x = 3,811,925,239.19/70,871.33
  6. Step 6: Final answer
    x = 53,786.56

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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.